Depending on your DRO, you might have a linear spacing function. Pretty sure mine from TPACTools.com (5 years old) has it.
Couple of methods; punch in the starting coordinate and ending coordinate and tell it how many holes. The down arrow key steps through the coordinates to each hole. The DRO targets each subsequent hole at 0,0; so do a hole, hit the down arrow to move to the next hole and move the hand wheels to 0,0.
The other method is incremental: Go to the start coordinate and tell the DRO the offset for each subsequent hole. Do the first hole, hit the down arrow and the DRO updates 0,0 to the next hole. Hitting the down arrow steps further down the string, up arrow works upstream.
Lots of good ideas above this post that'll work well also.
Bruce