Steps to reproduce:
1. Create new Unity project using Universal 2D Template
2. Open Light Explorer window
3. Right-click on Multi-column panel to open menu
4. Disable everything from the menu that is selected (Name, Type, Color, Sprite, etc)
5. Observe the Console window
Actual results: Disabling last menu option from Multi-column panel in Light Explorer throws “ArgumentException” error in the Console window
Expected results: The last remaining visible column should not be able to be disabled, either by greying out the last checked menu option or by preventing the action and showing a warning to the user
Reproducible with versions: 6000.0.74f1, 6000.3.14f1, 6000.4.6f1, 6000.5.0b7, 6000.6.0a4
Tested on (OS): macOS Silicon Tahoe 26.4.1