If you are looking for a way to quick and easy get items and blocks or change specific gameplay options in MCPE then you can use the this mod to control the game extensively.
Attention: The application Mod Too Much Items for MCPE Minecraft PE is not a game, and does not belong to its creators. All materials are consistent with the principle of fair use of all United States law. If you find a violation of copyright or non-compliance, please contact us immediately. The name Minecraft, the Minecraft brand and assets are the property of Minecraft Mojang AB Company or its owner. All rights reserved. In accordance with http://account.mojang.com/documents/brand_guidelines