eXpress can increase or decrease spacing of 1 to N items both horizontally and vertically. Here is shown just 2 Items being repaced from 5 spaces to exactly 40 spaces.
Other options are to "No more than inserted value" or "No Less Than Inserted value". This capability works in both the horizontal and Vertical directions
Increasing Spacing Horizontally
Items 5 spaces apart Using Adjust Object Spacing Window To Items 40 spaces apart