I once came across renaming a group of columns so that the group name will be reflected on the dxf plan wherever an instance of that group occurs. Unfortunately I don't know how I did it the first time, I know that I had access to edit the group name through the "Edit column description/prefix" option where the "Type" in the table showed GRP as for editing the group name, but now it only show COL for editing the prefix of each column in the group.
Any idea?
