@@MDPLACEHOLDER_0@@@@MDPLACEHOLDER_1@@@@MDPLACEHOLDER_2@@

NOTICE

Right now it is impossible for mods to detect shift click dragging items in inventories, so this mod unfortunately doesn't support it yet.
If/when it becomes possible in the future, I'll definitely be adding support for it, but for now you'll just have to settle for shift + clicking individual stacks or ctrl + clicking as normal.

Thanks to hy_speed for the idea.