Can somebody please tell me? if there isn't a way, first of all. why? its a feature in almost every single other game engine, why cant we have it? moderation maybe? secondly, Is there an alternative?
There is not, this is partially due to moderation but is mainly because of the way the ROBLOX mesh physics work. An alternative is instead of making your creation a mesh, make it a union which has a wider physics engine to work with.