Fake dupe in survival inventory creative-like

When i click the middle mouse button in minecraft (wheel button) in the inventory in survival, the item starts to dupe while i drag the pointer on the slots, like in creative mode, a stack of a block appears on every slot the pointer goes. When i release the wheel button everything disappears. while i drag the item, it becames 64 when i do it. When i stop, it turns the number it has before.