fillling up the desks in the classroom

I havent worked out if there is a way to increase the number of students yet either. The most I have seen is 11, when the classroms have nine desks each. I think there is a limit of 20 sims on a lot at a time, which would mean that with the five staff 15 would be the most you could get if they disabled sims walking by.

I thought maybe it was tied to the number of claimable lockers as other students do claim them, but after I added another 6, a single random generated sim showed up in addition to the NPCs that were there before.

Idk, I got 6 desks per classroom and usually, only one or two are empty (mostly in the classroom my sim isnt using), so in case you still got the 8 desks classrooms I suggest deleting some desks.