This option allows you to change the order that the action bar columns appear by dragging and dropping. And you can also choose which design elements are displayed in the actionBarEZ interface through the window's checkboxes.

The 3 buttons (Select All, Deselect All and Inverse Selection) allows you to change the visibility state of each view. When a design element is checked its actions will be displayed; when it's not checked its actions will not be displayed in actionBarEZ interface.