Flexicious 1.5.2 has an new property on ExtendedDataGridColumn and ExtendedAdvancedDataGridColumn, excludeFromSettings that will prevent the column from showing up in the Settings Popup. Use this for columns that you wish to always have visible. You will also need an updated SettingsPopup.mxml file, which is attached.

 

 

SettingsPopup.mxml (2.88 kb)