ok so the things i figured out so far with fl (i might leave some out by accident)
what the parametric eq 2 does
what the effector does
how to sidechain with the limiter
how to slide notes
automation clips
what else would be important or really useful to know
everything else about the program. learn how the compressor works, learn how to properly mix, learn what all the different effects do, then learn all the parameters on the audio effects, learn all the parameters on the virtual instruments, deconstruct preset synth patches until it's down to the bare waveforms.