How do i combine pre-compose comps! in after effects?

so im making a video and of course it got pretty crowded so i pre-composed all the effects, 2 hours later i have 4 pre-composed comps and i go and look up at the (project) where it shows all my files and its showing all my comps (4). i just started thinking how am i going to export all of these with the render queue! if i drag all my comps into it and press export it just exports all my comps into separate videos! if you understood that help please!