Another tip: if you r-click on a line (must be an individual line), there is an option for “Divide”. This lets you move the mouse up and down the line where a popup will tell you the number of divisions and the distance.
Draw a line spanning the distance that the objects need to be arrayed and use this tool to get SU to tell you the number of copies you will need or the specific spacing to fill the gap. Delete the line afterwards.
If you want the gap between all the objects and the ‘edge’ of the space they fill to be the same, then you need the starting object to be within the edge of the opening - once the array is created, the starting (and ending) objects are deleted… makes more sense with a picture;
