Hi Mark, in the current MoI v2 beta you can assign those objects a name. After that, the name will appear in the scene browser where you can click on it to select it:



Once selected, you can use any of the transform methods to transform the objects together - any selection set of objects will transform together like that.

I am also going to be looking into something that is closer to a groups type mechanism as well, but that is not complete yet.

- Michael