You can copy-paste the choice settings (including colors):
- Click into the Choice configuration in the creator panel where all the choices and colors are configured
- Press Ctrl+A to select all, and Ctrl+C to copy to clipboard (Cmd+A and Cmd+C on Mac)
- Click into the Choice configuration for the destination column, and press Ctrl+V to paste the settings (Cmd+V on Mac).
There isn’t yet a way to keep these settings in sync, unfortunately. For that, one idea we’ve had is to support a “style library”, so that several columns could share the same style.