It would be incredibly useful to have a “parent group” or group transformation mode directly in the folder and group structure.

How that could work:

You click on a special button or a switcher on a folder group (e.g. “Parent Group” mode).

The entire group is then treated as a single, contiguous object with its own, independent point of origin (pivot point).

You can select the entire group as a whole, rotate, scale, move and set the pivot point.

This would finally solve the annoying “Select All” and the constant manual resetting of the pivot on folder contents and drastically speed up the workflow when assembling complex models.

In theory, you could even add an optional “glue” mode to it. If this is active, I can select any child in the group and have then always selected the entire group.