# tmux.Server.SetExtendedKeysFormat

- **Module:** tmux.Server
- **Package:** github.com/libtmux/libtmux-go/tmux
- **Language:** Go
- **Kind:** method
- **Source:** https://github.com/libtmux/libtmux-go/blob/52968a3181c1c9e6d1b26c565d4b170968ae61c0/tmux/option_generated.go#L5236
- **Page:** https://libtmux.org/en/go/latest/reference/tmux-server-setextendedkeysformat/

```
tmux.Server.SetExtendedKeysFormat(ctx: context.Context, value: ExtendedKeysFormat) -> error
```

SetExtendedKeysFormat stores the "extended-keys-format" server option as ExtendedKeysFormat (tmux 3.5 or later). Read it with [ServerOptionValues.ExtendedKeysFormat] from [Server.Options]; [Server.UnsetOption] restores inheritance or the global default.