Swapping lab section on Lionpath?

Hi, I have a course that involves a lecture and a lab section, however I want to change my lab section while keeping my spot in lecture section. Unlike the old system, Lionpath requires us to schedule both sections simultaneously(as if they’re complements). The problem is that when I tried to pair the same lecture with another lab and then swap it with the pair on my schedule, an error message popped out saying I’m already enrolled in the class! How do I swap it without having to drop the class and move to the end of the wait list??!!
Lionpath is SO FRUSTRATING!!!

Thanks in advance!!