libtmux:break-pane

Break PANE from SOURCE-LINK into SESSION's free INDEX; return an outcome. SOURCE-LINK fixes the session context when breaking the window's only pane; tmux moves that link instead of creating another physical window. NAME is literal. DETACHED defaults true. OBSERVE supplies the destination window link. On tmux 3.7, a new named window requires a following RENAME-WINDOW in the same guarded request; its configured hooks can run. Failure can leave the pane moved. The pane keeps its identity. Signals INVALID-ARGUMENT, STALE-TARGET or an operational condition. Occupied indexes are never overwritten.