Help background character placements needed

Ok so, basically I need help placing my stupid ass background characters but I cant figure out the placements to get them like behind or whatever idk smh anyways this is the background

INT. BLUE SCHOOL HALLWAY - DAY

To place characters, try out spot directing. Check out this thread on it:

To understand layers, check out this thread:

Good luck!

Omllll was this always there THANK YOU WTF