# tmux.SetPlanOptionRequest.Append

- **Module:** tmux.SetPlanOptionRequest
- **Package:** github.com/libtmux/libtmux-go/tmux
- **Language:** Go
- **Kind:** attribute
- **Source:** https://github.com/libtmux/libtmux-go/blob/52968a3181c1c9e6d1b26c565d4b170968ae61c0/tmux/plan_server.go#L49
- **Page:** https://libtmux.org/en/go/latest/reference/tmux-setplanoptionrequest-append/

Append adds to an existing value rather than replacing it.