This is a very basic but logical idea, a compression tool, you know how you can compress DEUT? Change Its volume and stuff? This is what the tool does, of course only for non-solids.
I'm sure this can be useful, especially when creating bombs, this would be the tool to use, compress a lot of powder and nitroglycerin, put some plutonium and vibranium, yeah would make a big bomb, occupying just a few pixels, most bomb test builds, and destroyable stuff overall are usually too big or occupy a lot of space for very powerful bombs to be placed, such as most nukes (usually) occupy a lot of space, thus can't be placed properly without clipping through the builds.
I think this would very very useful, just my opinion really.