I'm using EnderIO-1.7.10-2.3.0.422_beta. In the inventory panel when I try to control click to pick up a single item from a stack it takes the full stack. This wouldn't be a big deal except I can't use the return area to send some items back because automated processing fills up the storage drawers nearly instantly.

I'm not sure if this a bug or intentional but control clicking works everywhere else I've tried.

Unrelated.

This has do do with the fact that the inventory area isn't really slots but only looks that way. It basically is a big picture that will retrieve items when you click into it and attach them to your mouse cursor. So every mouse action has to be coded explicitly, and the Control-Click was missed.

(Assuming Control-Click is vanilla. It's not an action I was aware of.)

I don't think it's anything. However, it is how AE2 behaves. So maybe we should consider it.

Similar issue: #2997

EDIT: Oops, misread.