When creating/editing the world, toggle on “Enable Experimental Gameplay” (also called “Holiday Creator Features”). This is harmless for the Q Button.
F5 and Q Button without Settings Overlay!!! - Texture Pack MCPE 1.21+ Q Button Addon Mcpe Download
The Ultimate Guide to Q Button Addons for Minecraft PE (MCPE): Enhance Your Mobile Gameplay - Texture Pack MCPE 1
Dropping items quickly in Minecraft PE (Bedrock Edition) has always been a challenge for mobile players. On Java Edition, PC players can instantly drop an item from their hand or inventory by pressing a single key: the "Q" key. Mobile players, however, have to long-press an item on their hotbar or open their inventory and drag it out, which is slow and dangerous during intense gameplay. When creating/editing the world
No. Java Edition already has the Q key. This addon is strictly for Bedrock/MCPE.
Because this modification alters the user interface, you must activate it properly in your settings menu before it will appear in your world.
Elevate Your Gameplay: The Ultimate Guide to the Q Button Addon for MCPE