This exploit is how to set up one private shop in forbidden zones, for servers that have this option:
1. Go to area you can open private shop, set up things you want to add in, then you have 2 options:
a) You make party with one doomcryer and he summon you, gate chant;
b) If "a)" dont works you can try instead of an doomcryer, you party a summoner with summon friend skill, then he must attemp to summon you in a "shop" zone, but you shouldnt accept the summon yet, let him run to the location of non-shop zone that you want, and then accept the summon, and dadam!
EDIT1: Credits by me ofc!
EDIT2: You can get kick by gm causee this, i advice you only to put your shop a little out of limits and not in middle of a forbidden zone