Custom items in Arena Selector

[ItsFantom]

Is your feature request related to a problem? Please describe. N/A

Describe the solution you'd like Custom items in Arena Selectors, To be able add custom items like Close function or maybe custom commands

Describe alternatives you've considered I don't think it has alternatives? I may be wrong.

Additional context N/A

[ItsFantom]

It does have alternative by making menu in DM but still if anyone wants to make PR would be cool 👍🏼

[Eradiator]

Its a cool idea because i also want that custom item in GUI menu

[Eradiator]

This is a duplicate of #329