Group It is a script for 3ds Max that builds a group from the objects you have selected. The resulting group inherits its orientation from the first selected object, and the script supports nested groups.
Naming is configurable: you can add a prefix drawn from the first selected object's layer name, or type a specific name for the group. Left empty, the group takes the same name it would receive from the standard 3ds Max group function. You can also choose where the group pivot is placed and whether the selected objects are moved into the same layer as the first selected object.
The current release is version 1.4.9. A version without a UI is also available; by default it places the pivot at the base and keeps every group member in the same layer. The script was tested on 3ds Max 2024 and should work on any 3ds Max version. It is listed here as free.