How do I add columns to an existing column group?
I couldn't find this in the manual. I did what I thought was the logical thing: selected the existing column group and also the new columns I wanted to add.
This created a new column group with just the new columns and wiped out my whole existing column set. The columns disappeared. "Add column" showed they were still assigned to the grid and "Hidden columns" showed they weren't hidden. But they were nowhere to be found.
Looks like you have to ungroup the existing set, then create a new group that includes the new columns.
Wayne
W10, 1.128.6

