Hello metameta, first let me welcome you to the community!
By coincidence i came across your post, though i find it hard to understand what precisely is your problem.
For what i understand from your explanation is this:
You have 1 sprite on your layout, you copied it 4 times creating 5 identical sprites on your layout.
You want them to be placed on random locations on the layout?
If this is not the case then please try to give a more detailed explanation of your problem, and i will try my best to help you out!