I'm using the column chooser and I want the actions column to be fixed, but to deselect I want it to be mandatory that some column is checked.
(in this image below it is possible to apply the changes, despite the cursor not having appeared in the print)
And I need the changes to be applicable from at least 1 selected column like image below. So that the actions column is always visible, but not the only one on the screen.
How can I change the button validation to be at least 2 fields? Remembering that I'm using the [showInColumnChooser]="false" property on the "Actions" column.