# plan.planner.Step.is_marked

- **Module:** plan.planner.Step
- **Package:** libtmux
- **Language:** Rust
- **Kind:** method
- **Source:** https://github.com/libtmux/libtmux-rs/blob/f0e37052c232636b61d095817046e6bfc8f2ca40/crates/libtmux/src/plan/planner.rs#L30
- **Page:** https://libtmux.org/en/rs/latest/reference/plan-planner-step-is_marked/

```
plan.planner.Step.is_marked(self) -> bool
```

Whether this invocation addresses a new pane through tmux's `{marked}` register, which is what lets a create share an invocation with the operations that decorate it.