Guys, there has been a noticeable lack of updates regarding the upcoming version — Minecraft PE 0.15.0. One of the developers, specifically Daniel Vastanhoff, recently shared an amazing animated image on his Twitter page.
Daniel Vastanhoff posted a GIF that clearly shows how a sticky piston interacts with a chest. With the introduction of sticky pistons, you will now be able to create retractable chests that operate using Redstone mechanisms. 
You can hide these retractable chests within walls or floors. This new feature in Pocket Edition opens up numerous creative possibilities for “how to conceal a chest.” It could involve an entire mechanism.
For instance, you might construct a large mechanism beneath your house that shifts the floor while simultaneously raising a chest. This is just one idea for hiding a treasure chest filled with valuable metals and items under a small home.
