You can set that you want a border around an item but there is no control over which sides the border is on. You may, for example, want to just have the border on the left and bottom of the item. I would suggest in adding a border the default would be shown in an additional checkbox "ALL" - if that is 'unchecked' then four further checkboxes are shown 'Top' 'Right' 'Bottom' 'Left'.
You can set that you want a border around an item but there is no control over which sides the border is on. You may, for example, want to just have the border on the left and bottom of the item. I would suggest in adding a border the default would be shown in an additional checkbox "ALL" - if that is 'unchecked' then four further checkboxes are shown 'Top' 'Right' 'Bottom' 'Left'.