Hi Mike,

> A keyboard shortcut would be most logical as it would
> be out of most people's scope of normal use.

Then the problem becomes that it's not easily discoverable, it'll be a kind of hidden feature to many people. But something like that could still be a way to introduce it at some point and then try to figure how to incorporate into the UI afterwards.

It's pretty common for other programs to make a manipulator for scaling/moving/rotating that looks more like an axis tripod thing that goes in the center of the selection rather than around the outside.

But a corner frame mechanism like the 2D edit frame is more snappable since you can actually snap the corners on to other objects in the model when you drag them.

- Michael