being able to add instances to groups would fix so many problems,
fx if you wanna check if 2 of the same objects are in collision, you have no way to define each one???
this could be fixed with instance grouping by checking if their in collision and if they are you check if the current picked objects are equal to 2 and if so you pick a random one a and add it to an instance group so now you can pick each one by adding a new collision check between the instance group and object
essentially what it is, is variable objects
Actions and conditions
Conditions:
Pick _OBJECT_ from _INSTGROUP_
Actions:
Add _OBJECT_ to _INSTGROUP_
Remove _OBJECT_ from _INSTGROUP_
they would be defined as groups
its a really simple feature that would make my experience in GDevelop as an advanced developer so much easier!!