I have used the left button only until now, is this such a huge problem for you?
I have SP 3.2 and scaling the joints with the scaling tool works just fine. Actualy, the models of the joints are made with SU too, so if you enter their group you can also modify them π
I have not really worked with the gear-tool, so I have no answer here, sry
I think they are just some random units with no representation, just as they are used by the integrator. Some real units would be very fine, I think, but unfortunately SP wasn't updated for quite a while
Yeah, that happens sometimes, but I lack the insight in the code to say you, what causes it. Better save your model before running the simulation. And don't copy any joints as the integrator can't handle multiple joints with the same adress