Commands:
/ul ~ opens the Main Menu presenting two options for the Player Options or the List Menu (coming in 1.0.1).

/open <player> ~ this opens the command for a targeted player (same as if you used the List Menu).

/reload~ reloads the entire plugin configuration.

/reloadsettings ~ reloads the roleSettings.yml.
/reloadroles ~ reloads the roleFormat.yml.

All of these files can be found in UnluckyGui (JAR generated folder), and they can be used to change how role names appear on the menu, or if a role should be blacklisted or not and many more options. I highly recommend looking into these files.