When viewing a list of work centers, it is very easy to accidentally delete a column by dragging it up slightly. If this happens, I have to contact my IT department and wait for them to be able to add it back. It should be less easy to delete a column and way easier to add it back.
In the bottom portion of this module, a user has to right click and choose "remove this column" from the menu to remove a column. To add it back, a user would simply go to "Column chooser" and select a column to add.