Shortcut Codes

[Gamemakingdude]

It's actually just B for creating a compound. Compounds are 'custom' objects. Just select multiple objects (let's say a wall and some fitting welders) so they are all selected at the same time and then press b. The compound should now be marked red, and it behaves like ONE giant object, you can move it around and duplicate without the hassle of rebuilding it everytime

That is awesome and useful for grouping rooms