Ungroup option and minimized default AT

[Blandflakes]

Two features that would make browsing through the game in the AT easier.

• Ungroup option.
  

This way we can put the contents of a model (or brick or something) into the model's Parent without having to manually drag each one into it.

• Minimized by default.
  

Currently, every single object in the game is shown when you open it. This makes finding the parts you want a bit difficult. I think it should have all the objects "minimized" instead of "maximized", or at least have a Settings choice for it.

You can already ungroup things.... just select the model and click the group button. It should ungroup the model.