Export your track as a loop. If you need to go back to mixing, just keep your laptop on sleep mode. You can produce 100% full songs in the trial version. You just can't turn your computer off and come back to the exact mixer settings unless you buy a license.
If you’re a student or teacher, Image-Line offers a on all editions. A valid student ID is all you need. download fl studio all plugins edition free
It has and includes every instrument and effect. Export your track as a loop