Hi there @Timbient. Reading your post I’m guessing something like a New Fx that allowed control of the chosen LFO waveform? Have you considered writing up a draft wish? If you are not familiar with the process, you can read up on it here.
Beyond that, I have had a couple of songs where I’ve been wanting to do the same. I end up using 2 tracks each with the same instrument but different LFO shape, and then bounce them down to 1 track. However, if you’re using this for granular purposes the transition would most likely be too abrupt between the 2 tracks.