# tmux.GlobalWindowScope - **Module:** tmux - **Package:** github.com/libtmux/libtmux-go/tmux - **Language:** Go - **Kind:** struct - **Source:** https://github.com/libtmux/libtmux-go/blob/5f808882015a975a65acc7f9da5b3ff0d5cbdc91/tmux/option_scope.go#L11 - **Page:** https://libtmux.org/reference/go/tmux-globalwindowscope/ GlobalWindowScope is an immutable handle for global window options and hooks. Its zero value is invalid because it contains a zero [Server]. ## Members - `Hooks` (method) — Hooks returns a freshly decoded, caller-owned view of known global window hooks, including defaults. A read failure is returned rather than answered with zero values; context errors propagate. - `RawHook` (method) — RawHook returns one exact global window-hook value. A successful string is caller-owned; ok reports presence and completed failures are returned. An unindexed empty hook array is ambiguous; use Hooks for typed presence. - `SetHook` (method) — SetHook stores a global window hook without refreshing models. Completed failures are secret-safe option errors; cancellation does not prove tmux did not accept the mutation. - `AppendHook` (method) — AppendHook appends a command to a global window hook without refreshing models. Completed failures are secret-safe option errors; cancellation does not prove tmux did not accept the append. - `UnsetHook` (method) — UnsetHook removes every matching global window-hook index without refreshing models. Completed failures are secret-safe option errors; cancellation does not prove tmux did not accept the unset. - `RunHook` (method) — RunHook asks tmux to run one global window hook directly. It targets global window scope rather than a receiver, returns secret-safe option errors for completed failures, and cancellation does not prove hook delivery or execution did not occur. - `SetHooks` (method) — SetHooks applies indexed global window-hook commands in ascending order. With ClearExisting it confirms clearing before applying sparse Values, stops at the first failure without rollback, and reports confirmed progress. Cancellation may follow accepted commands and cannot disprove their delivery. - `SetAggressiveResize` (method) — SetAggressiveResize stores the "aggressive-resize" window option as bool (tmux 3.2a or later). Read it with [WindowOptionValues.AggressiveResize] from [GlobalWindowScope.Options]; [GlobalWindowScope.UnsetOption] restores inheritance or the global default. - `SetAllowPassthrough` (method) — SetAllowPassthrough stores the "allow-passthrough" window option as AllowPassthrough (tmux 3.3 or later). Read it with [WindowOptionValues.AllowPassthrough] from [GlobalWindowScope.Options]; [GlobalWindowScope.UnsetOption] restores inheritance or the global default. - `SetAllowRename` (method) — SetAllowRename stores the "allow-rename" window option as bool (tmux 3.2a or later). Read it with [WindowOptionValues.AllowRename] from [GlobalWindowScope.Options]; [GlobalWindowScope.UnsetOption] restores inheritance or the global default. - `SetAllowSetTitle` (method) — SetAllowSetTitle stores the "allow-set-title" window option as bool (tmux 3.5 or later). Read it with [WindowOptionValues.AllowSetTitle] from [GlobalWindowScope.Options]; [GlobalWindowScope.UnsetOption] restores inheritance or the global default. - `SetAlternateScreen` (method) — SetAlternateScreen stores the "alternate-screen" window option as bool (tmux 3.2a or later). Read it with [WindowOptionValues.AlternateScreen] from [GlobalWindowScope.Options]; [GlobalWindowScope.UnsetOption] restores inheritance or the global default. - `SetAutomaticRename` (method) — SetAutomaticRename stores the "automatic-rename" window option as bool (tmux 3.2a or later). Read it with [WindowOptionValues.AutomaticRename] from [GlobalWindowScope.Options]; [GlobalWindowScope.UnsetOption] restores inheritance or the global default. - `SetAutomaticRenameFormat` (method) — SetAutomaticRenameFormat stores the "automatic-rename-format" window option as string (tmux 3.2a or later). Read it with [WindowOptionValues.AutomaticRenameFormat] from [GlobalWindowScope.Options]; [GlobalWindowScope.UnsetOption] restores inheritance or the global default. - `SetClockModeColour` (method) — SetClockModeColour stores the "clock-mode-colour" window option as string (tmux 3.2a or later). Read it with [WindowOptionValues.ClockModeColour] from [GlobalWindowScope.Options]; [GlobalWindowScope.UnsetOption] restores inheritance or the global default. - `SetClockModeStyle` (method) — SetClockModeStyle stores the "clock-mode-style" window option as ClockModeStyle (tmux 3.2a or later). Read it with [WindowOptionValues.ClockModeStyle] from [GlobalWindowScope.Options]; [GlobalWindowScope.UnsetOption] restores inheritance or the global default. - `SetCopyModeCurrentLineNumberStyle` (method) — SetCopyModeCurrentLineNumberStyle stores the "copy-mode-current-line-number-style" window option as string (tmux 3.7 or later). Read it with [WindowOptionValues.CopyModeCurrentLineNumberStyle] from [GlobalWindowScope.Options]; [GlobalWindowScope.UnsetOption] restores inheritance or the global default. - `SetCopyModeCurrentMatchStyle` (method) — SetCopyModeCurrentMatchStyle stores the "copy-mode-current-match-style" window option as string (tmux 3.2a or later). Read it with [WindowOptionValues.CopyModeCurrentMatchStyle] from [GlobalWindowScope.Options]; [GlobalWindowScope.UnsetOption] restores inheritance or the global default. - `SetCopyModeLineNumberStyle` (method) — SetCopyModeLineNumberStyle stores the "copy-mode-line-number-style" window option as string (tmux 3.7 or later). Read it with [WindowOptionValues.CopyModeLineNumberStyle] from [GlobalWindowScope.Options]; [GlobalWindowScope.UnsetOption] restores inheritance or the global default. - `SetCopyModeLineNumbers` (method) — SetCopyModeLineNumbers stores the "copy-mode-line-numbers" window option as CopyModeLineNumbers (tmux 3.7 or later). Read it with [WindowOptionValues.CopyModeLineNumbers] from [GlobalWindowScope.Options]; [GlobalWindowScope.UnsetOption] restores inheritance or the global default. - `SetCopyModeMarkStyle` (method) — SetCopyModeMarkStyle stores the "copy-mode-mark-style" window option as string (tmux 3.2a or later). Read it with [WindowOptionValues.CopyModeMarkStyle] from [GlobalWindowScope.Options]; [GlobalWindowScope.UnsetOption] restores inheritance or the global default. - `SetCopyModeMatchStyle` (method) — SetCopyModeMatchStyle stores the "copy-mode-match-style" window option as string (tmux 3.2a or later). Read it with [WindowOptionValues.CopyModeMatchStyle] from [GlobalWindowScope.Options]; [GlobalWindowScope.UnsetOption] restores inheritance or the global default. - `SetCopyModePositionFormat` (method) — SetCopyModePositionFormat stores the "copy-mode-position-format" window option as string (tmux 3.6 or later). Read it with [WindowOptionValues.CopyModePositionFormat] from [GlobalWindowScope.Options]; [GlobalWindowScope.UnsetOption] restores inheritance or the global default. - `SetCopyModePositionStyle` (method) — SetCopyModePositionStyle stores the "copy-mode-position-style" window option as string (tmux 3.6 or later). Read it with [WindowOptionValues.CopyModePositionStyle] from [GlobalWindowScope.Options]; [GlobalWindowScope.UnsetOption] restores inheritance or the global default. - `SetCopyModeSelectionStyle` (method) — SetCopyModeSelectionStyle stores the "copy-mode-selection-style" window option as string (tmux 3.6 or later). Read it with [WindowOptionValues.CopyModeSelectionStyle] from [GlobalWindowScope.Options]; [GlobalWindowScope.UnsetOption] restores inheritance or the global default. - `SetCursorColour` (method) — SetCursorColour stores the "cursor-colour" window option as string (tmux 3.3 or later). Read it with [WindowOptionValues.CursorColour] from [GlobalWindowScope.Options]; [GlobalWindowScope.UnsetOption] restores inheritance or the global default. - `SetCursorStyle` (method) — SetCursorStyle stores the "cursor-style" window option as CursorStyle (tmux 3.3 or later). Read it with [WindowOptionValues.CursorStyle] from [GlobalWindowScope.Options]; [GlobalWindowScope.UnsetOption] restores inheritance or the global default. - `SetFillCharacter` (method) — SetFillCharacter stores the "fill-character" window option as string (tmux 3.3 or later). Read it with [WindowOptionValues.FillCharacter] from [GlobalWindowScope.Options]; [GlobalWindowScope.UnsetOption] restores inheritance or the global default. - `SetMainPaneHeight` (method) — SetMainPaneHeight stores the "main-pane-height" window option as string (tmux 3.2a or later). Read it with [WindowOptionValues.MainPaneHeight] from [GlobalWindowScope.Options]; [GlobalWindowScope.UnsetOption] restores inheritance or the global default. - `SetMainPaneWidth` (method) — SetMainPaneWidth stores the "main-pane-width" window option as string (tmux 3.2a or later). Read it with [WindowOptionValues.MainPaneWidth] from [GlobalWindowScope.Options]; [GlobalWindowScope.UnsetOption] restores inheritance or the global default. - `SetMenuBorderLines` (method) — SetMenuBorderLines stores the "menu-border-lines" window option as MenuBorderLines (tmux 3.4 or later). Read it with [WindowOptionValues.MenuBorderLines] from [GlobalWindowScope.Options]; [GlobalWindowScope.UnsetOption] restores inheritance or the global default. - `SetMenuBorderStyle` (method) — SetMenuBorderStyle stores the "menu-border-style" window option as string (tmux 3.4 or later). Read it with [WindowOptionValues.MenuBorderStyle] from [GlobalWindowScope.Options]; [GlobalWindowScope.UnsetOption] restores inheritance or the global default. - `SetMenuSelectedStyle` (method) — SetMenuSelectedStyle stores the "menu-selected-style" window option as string (tmux 3.4 or later). Read it with [WindowOptionValues.MenuSelectedStyle] from [GlobalWindowScope.Options]; [GlobalWindowScope.UnsetOption] restores inheritance or the global default. - `SetMenuStyle` (method) — SetMenuStyle stores the "menu-style" window option as string (tmux 3.4 or later). Read it with [WindowOptionValues.MenuStyle] from [GlobalWindowScope.Options]; [GlobalWindowScope.UnsetOption] restores inheritance or the global default. - `SetModeKeys` (method) — SetModeKeys stores the "mode-keys" window option as ModeKeys (tmux 3.2a or later). Read it with [WindowOptionValues.ModeKeys] from [GlobalWindowScope.Options]; [GlobalWindowScope.UnsetOption] restores inheritance or the global default. - `SetModeStyle` (method) — SetModeStyle stores the "mode-style" window option as string (tmux 3.2a or later). Read it with [WindowOptionValues.ModeStyle] from [GlobalWindowScope.Options]; [GlobalWindowScope.UnsetOption] restores inheritance or the global default. - `SetMonitorActivity` (method) — SetMonitorActivity stores the "monitor-activity" window option as bool (tmux 3.2a or later). Read it with [WindowOptionValues.MonitorActivity] from [GlobalWindowScope.Options]; [GlobalWindowScope.UnsetOption] restores inheritance or the global default. - `SetMonitorBell` (method) — SetMonitorBell stores the "monitor-bell" window option as bool (tmux 3.2a or later). Read it with [WindowOptionValues.MonitorBell] from [GlobalWindowScope.Options]; [GlobalWindowScope.UnsetOption] restores inheritance or the global default. - `SetMonitorSilence` (method) — SetMonitorSilence stores the "monitor-silence" window option as int64 (tmux 3.2a or later). Read it with [WindowOptionValues.MonitorSilence] from [GlobalWindowScope.Options]; [GlobalWindowScope.UnsetOption] restores inheritance or the global default. - `SetOtherPaneHeight` (method) — SetOtherPaneHeight stores the "other-pane-height" window option as string (tmux 3.2a or later). Read it with [WindowOptionValues.OtherPaneHeight] from [GlobalWindowScope.Options]; [GlobalWindowScope.UnsetOption] restores inheritance or the global default. - `SetOtherPaneWidth` (method) — SetOtherPaneWidth stores the "other-pane-width" window option as string (tmux 3.2a or later). Read it with [WindowOptionValues.OtherPaneWidth] from [GlobalWindowScope.Options]; [GlobalWindowScope.UnsetOption] restores inheritance or the global default. - `SetPaneActiveBorderStyle` (method) — SetPaneActiveBorderStyle stores the "pane-active-border-style" window option as string (tmux 3.2a or later). Read it with [WindowOptionValues.PaneActiveBorderStyle] from [GlobalWindowScope.Options]; [GlobalWindowScope.UnsetOption] restores inheritance or the global default. - `SetPaneBaseIndex` (method) — SetPaneBaseIndex stores the "pane-base-index" window option as int64 (tmux 3.2a or later). Read it with [WindowOptionValues.PaneBaseIndex] from [GlobalWindowScope.Options]; [GlobalWindowScope.UnsetOption] restores inheritance or the global default. - `SetPaneBorderFormat` (method) — SetPaneBorderFormat stores the "pane-border-format" window option as string (tmux 3.2a or later). Read it with [WindowOptionValues.PaneBorderFormat] from [GlobalWindowScope.Options]; [GlobalWindowScope.UnsetOption] restores inheritance or the global default. - `SetPaneBorderIndicators` (method) — SetPaneBorderIndicators stores the "pane-border-indicators" window option as PaneBorderIndicators (tmux 3.3 or later). Read it with [WindowOptionValues.PaneBorderIndicators] from [GlobalWindowScope.Options]; [GlobalWindowScope.UnsetOption] restores inheritance or the global default. - `SetPaneBorderLines` (method) — SetPaneBorderLines stores the "pane-border-lines" window option as PaneBorderLines (tmux 3.2a or later). Read it with [WindowOptionValues.PaneBorderLines] from [GlobalWindowScope.Options]; [GlobalWindowScope.UnsetOption] restores inheritance or the global default. - `SetPaneBorderStatus` (method) — SetPaneBorderStatus stores the "pane-border-status" window option as PaneBorderStatus (tmux 3.2a or later). Read it with [WindowOptionValues.PaneBorderStatus] from [GlobalWindowScope.Options]; [GlobalWindowScope.UnsetOption] restores inheritance or the global default. - `SetPaneBorderStyle` (method) — SetPaneBorderStyle stores the "pane-border-style" window option as string (tmux 3.2a or later). Read it with [WindowOptionValues.PaneBorderStyle] from [GlobalWindowScope.Options]; [GlobalWindowScope.UnsetOption] restores inheritance or the global default. - `SetPaneScrollbars` (method) — SetPaneScrollbars stores the "pane-scrollbars" window option as PaneScrollbars (tmux 3.6 or later). Read it with [WindowOptionValues.PaneScrollbars] from [GlobalWindowScope.Options]; [GlobalWindowScope.UnsetOption] restores inheritance or the global default. - `SetPaneScrollbarsPosition` (method) — SetPaneScrollbarsPosition stores the "pane-scrollbars-position" window option as PaneScrollbarsPosition (tmux 3.6 or later). Read it with [WindowOptionValues.PaneScrollbarsPosition] from [GlobalWindowScope.Options]; [GlobalWindowScope.UnsetOption] restores inheritance or the global default. - `SetPaneScrollbarsStyle` (method) — SetPaneScrollbarsStyle stores the "pane-scrollbars-style" window option as string (tmux 3.6 or later). Read it with [WindowOptionValues.PaneScrollbarsStyle] from [GlobalWindowScope.Options]; [GlobalWindowScope.UnsetOption] restores inheritance or the global default. - `SetPaneStatusCurrentStyle` (method) — SetPaneStatusCurrentStyle stores the "pane-status-current-style" window option as string (tmux 3.6 or later). Read it with [WindowOptionValues.PaneStatusCurrentStyle] from [GlobalWindowScope.Options]; [GlobalWindowScope.UnsetOption] restores inheritance or the global default. - `SetPaneStatusStyle` (method) — SetPaneStatusStyle stores the "pane-status-style" window option as string (tmux 3.6 or later). Read it with [WindowOptionValues.PaneStatusStyle] from [GlobalWindowScope.Options]; [GlobalWindowScope.UnsetOption] restores inheritance or the global default. - `SetPopupBorderLines` (method) — SetPopupBorderLines stores the "popup-border-lines" window option as PopupBorderLines (tmux 3.3 or later). Read it with [WindowOptionValues.PopupBorderLines] from [GlobalWindowScope.Options]; [GlobalWindowScope.UnsetOption] restores inheritance or the global default. - `SetPopupBorderStyle` (method) — SetPopupBorderStyle stores the "popup-border-style" window option as string (tmux 3.3 or later). Read it with [WindowOptionValues.PopupBorderStyle] from [GlobalWindowScope.Options]; [GlobalWindowScope.UnsetOption] restores inheritance or the global default. - `SetPopupStyle` (method) — SetPopupStyle stores the "popup-style" window option as string (tmux 3.3 or later). Read it with [WindowOptionValues.PopupStyle] from [GlobalWindowScope.Options]; [GlobalWindowScope.UnsetOption] restores inheritance or the global default. - `SetRemainOnExit` (method) — SetRemainOnExit stores the "remain-on-exit" window option as RemainOnExit (tmux 3.2a or later). Read it with [WindowOptionValues.RemainOnExit] from [GlobalWindowScope.Options]; [GlobalWindowScope.UnsetOption] restores inheritance or the global default. - `SetRemainOnExitFormat` (method) — SetRemainOnExitFormat stores the "remain-on-exit-format" window option as string (tmux 3.3 or later). Read it with [WindowOptionValues.RemainOnExitFormat] from [GlobalWindowScope.Options]; [GlobalWindowScope.UnsetOption] restores inheritance or the global default. - `SetScrollOnClear` (method) — SetScrollOnClear stores the "scroll-on-clear" window option as bool (tmux 3.3 or later). Read it with [WindowOptionValues.ScrollOnClear] from [GlobalWindowScope.Options]; [GlobalWindowScope.UnsetOption] restores inheritance or the global default. - `SetSessionStatusCurrentStyle` (method) — SetSessionStatusCurrentStyle stores the "session-status-current-style" window option as string (tmux 3.6 or later). Read it with [WindowOptionValues.SessionStatusCurrentStyle] from [GlobalWindowScope.Options]; [GlobalWindowScope.UnsetOption] restores inheritance or the global default. - `SetSessionStatusStyle` (method) — SetSessionStatusStyle stores the "session-status-style" window option as string (tmux 3.6 or later). Read it with [WindowOptionValues.SessionStatusStyle] from [GlobalWindowScope.Options]; [GlobalWindowScope.UnsetOption] restores inheritance or the global default. - `SetSynchronizePanes` (method) — SetSynchronizePanes stores the "synchronize-panes" window option as bool (tmux 3.2a or later). Read it with [WindowOptionValues.SynchronizePanes] from [GlobalWindowScope.Options]; [GlobalWindowScope.UnsetOption] restores inheritance or the global default. - `SetTiledLayoutMaxColumns` (method) — SetTiledLayoutMaxColumns stores the "tiled-layout-max-columns" window option as int64 (tmux 3.6 or later). Read it with [WindowOptionValues.TiledLayoutMaxColumns] from [GlobalWindowScope.Options]; [GlobalWindowScope.UnsetOption] restores inheritance or the global default. - `SetTreeModePreviewFormat` (method) — SetTreeModePreviewFormat stores the "tree-mode-preview-format" window option as string (tmux 3.7 or later). Read it with [WindowOptionValues.TreeModePreviewFormat] from [GlobalWindowScope.Options]; [GlobalWindowScope.UnsetOption] restores inheritance or the global default. - `SetTreeModePreviewStyle` (method) — SetTreeModePreviewStyle stores the "tree-mode-preview-style" window option as string (tmux 3.7 or later). Read it with [WindowOptionValues.TreeModePreviewStyle] from [GlobalWindowScope.Options]; [GlobalWindowScope.UnsetOption] restores inheritance or the global default. - `SetWindowActiveStyle` (method) — SetWindowActiveStyle stores the "window-active-style" window option as string (tmux 3.2a or later). Read it with [WindowOptionValues.WindowActiveStyle] from [GlobalWindowScope.Options]; [GlobalWindowScope.UnsetOption] restores inheritance or the global default. - `SetWindowPaneCurrentStatusFormat` (method) — SetWindowPaneCurrentStatusFormat stores the "window-pane-current-status-format" window option as string (tmux 3.7 or later). Read it with [WindowOptionValues.WindowPaneCurrentStatusFormat] from [GlobalWindowScope.Options]; [GlobalWindowScope.UnsetOption] restores inheritance or the global default. - `SetWindowPaneStatusFormat` (method) — SetWindowPaneStatusFormat stores the "window-pane-status-format" window option as string (tmux 3.7 or later). Read it with [WindowOptionValues.WindowPaneStatusFormat] from [GlobalWindowScope.Options]; [GlobalWindowScope.UnsetOption] restores inheritance or the global default. - `SetWindowSize` (method) — SetWindowSize stores the "window-size" window option as WindowSize (tmux 3.2a or later). Read it with [WindowOptionValues.WindowSize] from [GlobalWindowScope.Options]; [GlobalWindowScope.UnsetOption] restores inheritance or the global default. - `SetWindowStatusActivityStyle` (method) — SetWindowStatusActivityStyle stores the "window-status-activity-style" window option as string (tmux 3.2a or later). Read it with [WindowOptionValues.WindowStatusActivityStyle] from [GlobalWindowScope.Options]; [GlobalWindowScope.UnsetOption] restores inheritance or the global default. - `SetWindowStatusBellStyle` (method) — SetWindowStatusBellStyle stores the "window-status-bell-style" window option as string (tmux 3.2a or later). Read it with [WindowOptionValues.WindowStatusBellStyle] from [GlobalWindowScope.Options]; [GlobalWindowScope.UnsetOption] restores inheritance or the global default. - `SetWindowStatusCurrentFormat` (method) — SetWindowStatusCurrentFormat stores the "window-status-current-format" window option as string (tmux 3.2a or later). Read it with [WindowOptionValues.WindowStatusCurrentFormat] from [GlobalWindowScope.Options]; [GlobalWindowScope.UnsetOption] restores inheritance or the global default. - `SetWindowStatusCurrentStyle` (method) — SetWindowStatusCurrentStyle stores the "window-status-current-style" window option as string (tmux 3.2a or later). Read it with [WindowOptionValues.WindowStatusCurrentStyle] from [GlobalWindowScope.Options]; [GlobalWindowScope.UnsetOption] restores inheritance or the global default. - `SetWindowStatusFormat` (method) — SetWindowStatusFormat stores the "window-status-format" window option as string (tmux 3.2a or later). Read it with [WindowOptionValues.WindowStatusFormat] from [GlobalWindowScope.Options]; [GlobalWindowScope.UnsetOption] restores inheritance or the global default. - `SetWindowStatusLastStyle` (method) — SetWindowStatusLastStyle stores the "window-status-last-style" window option as string (tmux 3.2a or later). Read it with [WindowOptionValues.WindowStatusLastStyle] from [GlobalWindowScope.Options]; [GlobalWindowScope.UnsetOption] restores inheritance or the global default. - `SetWindowStatusSeparator` (method) — SetWindowStatusSeparator stores the "window-status-separator" window option as string (tmux 3.2a or later). Read it with [WindowOptionValues.WindowStatusSeparator] from [GlobalWindowScope.Options]; [GlobalWindowScope.UnsetOption] restores inheritance or the global default. - `SetWindowStatusStyle` (method) — SetWindowStatusStyle stores the "window-status-style" window option as string (tmux 3.2a or later). Read it with [WindowOptionValues.WindowStatusStyle] from [GlobalWindowScope.Options]; [GlobalWindowScope.UnsetOption] restores inheritance or the global default. - `SetWindowStyle` (method) — SetWindowStyle stores the "window-style" window option as string (tmux 3.2a or later). Read it with [WindowOptionValues.WindowStyle] from [GlobalWindowScope.Options]; [GlobalWindowScope.UnsetOption] restores inheritance or the global default. - `SetWrapSearch` (method) — SetWrapSearch stores the "wrap-search" window option as bool (tmux 3.2a or later). Read it with [WindowOptionValues.WrapSearch] from [GlobalWindowScope.Options]; [GlobalWindowScope.UnsetOption] restores inheritance or the global default. - `SetXTermKeys` (method) — SetXTermKeys stores the "xterm-keys" window option as bool (tmux 3.2a or later). Read it with [WindowOptionValues.XTermKeys] from [GlobalWindowScope.Options]; [GlobalWindowScope.UnsetOption] restores inheritance or the global default. - `SetPaneColours` (method) — SetPaneColours replaces the complete "pane-colours" window option array with SparseArray[string], preserving holes and empty values (tmux 3.3 or later). Read it with [WindowOptionValues.PaneColours] from [GlobalWindowScope.Options]; [GlobalWindowScope.UnsetOption] restores inheritance or the global default. Replacement is not atomic: the result reports confirmed writes, and failures stop without rollback. Serialize concurrent replacement of the same target and option. - `SetOption` (method) — SetOption stores a global window option without refreshing existing models. Completed failures are secret-safe option errors; cancellation does not prove tmux did not accept the mutation. - `AppendOption` (method) — AppendOption appends to a global window option without refreshing models. Completed failures are secret-safe option errors; cancellation does not prove the append was not accepted. - `UnsetOption` (method) — UnsetOption unsets a global window option without refreshing models. UnsetPanes is invalid at this scope; cancellation does not prove the unset was not accepted. - `Options` (method) — Options returns a freshly decoded, caller-owned view of known global window options, including defaults. A read failure is returned rather than answered with zero values; context errors propagate. Each returned accessor names the setter that writes it, so [WindowOptionValues.MainPaneWidth] pairs with [GlobalWindowScope.SetMainPaneWidth]. - `RawOption` (method) — RawOption returns one exact global window-option value. A successful string is caller-owned, and ok reports presence. An unindexed empty array is indistinguishable from an empty scalar; use Options for typed array presence.