User request: move multiple spatials in scene composer

[neph1]

Currently only possible by placing them inside a Node.

Multiple select is possible in the SceneExplorer, but this isn't carried over to the 3d view.

Should be possible to allow multi select in 3d view.

[neph1]

Selection and moving is fairly straight forward, although it requires a bit of work. Question will be how to handle rotation and scaling of multiple objects. Individual centers? Ie, rotating around own axis, or central/median point?

[grizeldi]

Usually I've seen rotation/scaling work through a center/median point in other editors when manipulating multiple objects at the same time. Either that or it was togglable.