Hi, I'm glad you like it. Unfortunately deformations aren't currently supported, and I'm unsure if they ever will be. At the moment, collisions are fully elastic - like billiards balls. Creating a system that supports inelastic collisions on arbitrary meshes would tank the framerate, require at least several more weeks of work, and would be very difficult to retrofit into the existing Orbiter architecture, because docking ports and several other systems of stock vessels would all have to be greatly enhanced in order to make this work properly. If you crave inelastic collisions, I'm sure you know about Beam.NG. While not a game where you can fly into space, it'll give you what you're looking for, and you can mod rockets into it - there's just nowhere to fly lol.