Please improve the column selection dialog:
If more than one row is selected, apply the checkbox press to all of them, so that multiple (or even all) rows can be manipulated at once:
This would facilitate the "Select all, select none" handling, but a further improvement would be:
Please improve the column selection dialog: If more than one row is selected, apply the checkbox press to all of them, so that multiple (or even all) rows can be manipulated at once:
This would facilitate the "Select all, select none" handling, but a further improvement would be: