Trim rect to entity doesn't appear to me, only "custom". Is that what you meant?
I've tried custom, but I don't understand how it works, since it asks for Left, Top, Right, and Bottom and I honestly don't understand what to do with those values, maybe I'm just being stupid.
I can tweak the position of he hotspot per animation, but that will be a monumentally big task, since I will have literally hundreds of spritesheets of 9x6 images on a 8192x8192 type of texture. This essencially means I have to tweak literally hundreds of pictures to manually match the original one. I'd rather waste some memory and have the pivot exactly where I want it with a bit more of alpha pixels than wasting all that time tweaking.
I'm using UE4 blueprints system. It doesn't support Spriter files. I'll be importing the textures and slicing them up there, and customizing every sprite for a specific source dimension from the texture is incredibly time consuming. Also, yes I do know that it's not ideal to work this way, but it's how it's going to be
So is it "custom" or am I missing something with that "trim rect to entity"?
Thank you very much for the help.