I am trying to create me the casing for a circuit that I have built. Since that circuit needs some air circulation to avoid overheating I need to create a bunch of holes on the backside. So I faithfully placed a bunch of maybe 20 circles along the bottom of the backside and then "pulled" (or rather pushed) them through the wall to generate a row of holes, i.e. in plan view my back side now looks like this:
+------------------------+
| |
| |
| oooooooooooooooooooooo |
+------------------------+
But now I am stuck: how do I replicate (aka. copy&paste) these holes so that I get an entire grid of holes? Like so:
+------------------------+
| oooooooooooooooooooooo |
| oooooooooooooooooooooo |
| oooooooooooooooooooooo |
| oooooooooooooooooooooo |
+------------------------+
I fiddled with copying those holes & pasting them onto the back surface but all my attempts only yielded odd garbage and artifacts so far, like placing me "surfaces" that are 90 perpendicular into "mid air" and similar oddities.
I mean: is this a decent design program or not? It can't be that I need to draw me those 60+ additional holes all manual as I did the first row, can it?
How can one copy such "lines of holes" around? Or is there some different approach or tool to generate such regular, replicated structures?
EDIT: sorry - this forum's SW keeps messing up my "ASCII-art" so after a few attempts to make it looking well I gave up but I hope you get the idea...