# tmux.SetOptionOptions

- **Module:** tmux
- **Package:** github.com/libtmux/libtmux-go/tmux
- **Language:** Go
- **Kind:** struct
- **Source:** https://github.com/libtmux/libtmux-go/blob/52968a3181c1c9e6d1b26c565d4b170968ae61c0/tmux/option_mutation.go#L7
- **Page:** https://libtmux.org/en/go/latest/reference/tmux-setoptionoptions/

SetOptionOptions controls set-option mutation flags. Its zero value sends no optional mutation flags.

## Members

- `ExpandFormat` (attribute): ExpandFormat expands tmux formats in the value before storing it.
- `PreventOverwrite` (attribute): PreventOverwrite leaves an existing option unchanged.
- `Quiet` (attribute): Quiet suppresses tmux's missing-option diagnostic.