I have a suggestion for the "Columns of View" table that comes up when the Add/Remove Columns menu option is selected.

 

In this table, I think it would be good to be able to:

 

(1) list the "Shown" columns in the order in which they appear in the grid.  

(2) rearrange the order using "Move Up" and "Move Down" buttons (or Move Left and Move Right buttons).

 

It's already possible to display only the Shown columns (using the filter in the Show column header).  or put them at the top of the table (by clicking in the Show column header to sort the table by that column).  The ability to list the columns in their left-right order, and to adjust that order in the table, would extend the usefulness of this table.  I think it might also be an easier of way of ordering columns than the currently existing methods - all the ordering could be done in one location, without need to do any scrolling of the grid, dragging columns, etc.