EasyItemTransfer

• Hold shift and the left mouse button while hovering slots in any inventory-like screen to quick-move each stack you pass over, just like repeated shift-clicks.
• Works client-side only; slot rules are respected and slots are only moved once per drag to avoid spam.
• Transfers are skipped while you are holding an item on the cursor; release it to resume hover transfers.
• Implementation hooks into handled screens to send quick-move actions for newly hovered slots during a shift + left-button drag.