Add enter-able property box for parts in Inspector

What I’m really hoping is to be able to start development up so we can eliminate some of the edge cases, but so far that is proving difficult and I’m about the only one even trying. The interfaces to inspector I think should be public and not require code changes to work. Obviously that wasn’t the original plan, or (like so much else) it didn’t get finished before funding ran out.
Of the tutorials around, only these two refer to the 0.0.3b version, most of the rest are for earlier versions and sometimes don’t reflect current reality.

Peter