So, my intention is to have the head sprite locked on to one of the little circles. Each circle will have a new head when you play through each chapter of the game. This little revolving menu is how you'll select your party members. Each head will resemble a party member. I've added a little overlapping sprite, and when it overlaps with the head & circle, it'll choose what party member based on a variable/string within the head.
The code which i assume is important in this situation is
+ System: Layer "REVOLVER" is visible
----+ revolverpiece: Pick nearest to (REVOLVEHEAD1.X, REVOLVEHEAD1.Y)
-----> REVOLVEHEAD1: Set position to (revolverpiece.X, revolverpiece.Y)