ToolBox for Minecraft PE, which was originally a plug-in to BlockLauncher, but has been recently authored by the author (still available in the BlockLauncher)and used in MCPE to remind some of the features that are available only to this launcher.
Similar to BlockLauncher, press Launcher Options.
Currently you can install plug-ins and material packages.-ApkAwaRd.Com
There are a variety of game modifications and handy features such as box + solid mini-map, quick tree-cutting, perspective, etc., which are not available in BlockLaunchr.
This modifier really match with the original Minecraft, really recommend it to everyone.