Credits: real_tlgm
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When you first start the world, you must activate the overlay in the menu.
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Another important thing you need to do is to change the control scheme from Touch to Classic.
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How to install:
- Download the .mcpack file below
- Open the file using any file manager to import it into Minecraft PE
- Open Minecraft Pocket Edition
- Create new or edit an existing world
- Scroll down to the Resource packs section and select the ones you want to apply