I have a GridView with a few rows that have longer headers than I need. To address this, I implemented two-row headers, as shown in one of the screenshots. However, I am using a ControlPanel for a few settings, one of which is hiding and revealing columns in my GridView. This feature doesn't work properly with my two-row headers, as seen in the screenshots.
Initially, when I open the ControlPanel, all two-row headers disappear, leaving empty headers. When I hide a column with a two-row header, the name of the column (header) disappears from the ControlPanel, but the checkbox remains, as shown in the screenshots. When I reveal the column again, the header reappears.
My question is: How should I manage headers when I want them to be two-row?