OK. Have fun.
This is one we forgot.
Simple but accurate and effective.
You want to put a few images on a page, but space them 1/4 inch apart.
You could go into the Page Editor and use Algebra, Geometry, Calculus, and Trig, and move them 1/4 inch apart.
You could also add a + border, 1/8 inch wide, (0.125) in white (to be invisible) and then click COMPACT PLACEMENT.

Then on the main page, select what you want to move, and drag.
(caveat) After you drag, you will be in Freehand mode. Click the little white hand at the bottom to go back to Compact Placement,if you wish.
Snap 070 shows 4 images with 1/8 inch borders. Top in red so you can see them better.
Snap 069 shows that I selected the two owl images and dragged them down but keeping my 1/4 inch between images.
Have fun,
Fred