Hello, you already can group items.

Just take a look at the bottom left of your editing screen. There you can find a trash icon and two folder icons.

With those +folder icon you can create a layer and put all the stuff (drag and drop) in you want to have in the group.

For example:

You place a table somewhere -> it will get added to the "empty" layer on the entities page.

Now you place some stuff on the table (PC elements, displays, batteries etc.). These items will be stored in the same "empty" layer.

Now you create a new layer (+folder) and name it e.g. "Pc stuff". You can mark all these new items and drag them from the "empty" layer to the "Pc stuff" layer.

I hope you were looking for something like that?

Well, not really, although this layers are really helpful ! What I was thinking of, is more like : let's say I want to build a rather complicated structure (like a gun rack), involving objects I rotated because i want them fixed on the wall. When I finished, I would like to group it (the rack/support and the guns)into one solid object, so I can rotate it, place it or anything in one piece.
I know I could just select them all and rotate them, but not precisely with the "rotation" field in this selection attribute, because if I do that, it will rotate all my objects independently from the others.
I feel it would improve Eden to have this ability !

But thanks though for your advices !
This new editor is a beauty !

Hmm, your intention is already possible with Eden.

I just opened the editor (todays development branch), placed a wall and four targets in front of the wall (like a shooting range).

I marked all five objects, pressed the Space key (activation for the Rotation widget) and was able to rotate all objects. They acted like they were one solid object and they turned around one center.

You can even hold the shift key to turn all marked objects like one solid object.

Have you recently tried to turn several objects at once? If I didn't understand you wrong you want what I just described. Just try it for yourself.

Best regards.

I agree it is possible to rotate them like one solid object, but just with the mouse, not with the "rotation" field in the attributes (even when activated the field), which is a lot more precise and take less time. They will rotate oddly.
But the rotation is not my only point of interest, the ability to group things could be convenient in a lot of situation. It's a kind of relief to group a structure you just spent hours to build. That way you know you won't mess it selecting an element without noticing. Or else.

That is right. With the attributes field all marked objects just rotate around their own center and not one common center.

The only solution I can imagine is to add a rotation option to a custom layer. So it might possible to rotate all objects in that layer around one big center with the help of the attributes.

But honestly, I really think that the rotation widget/hold shift key function is more comfortable and faster.

But if you want to rotate the center of all marked objects exactly for 24 or 73 degrees you need another option.