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You can't edit each others islands without being invited, and you can only have 1 island also.. How were you'll planning to help each other o_O
What do you mean help you with your island? You have to do /is invite (name) to add her, and if she is added to her to do /is
Well, /tpa is the "main" perk for the VIP rank just like every rank has like a "Major" perk. If /tpa was to be removed from VIP for all, then VIP...