On the right side of the GUI you can set MIDI-related stuff and there are 3 LFOs. There is a single FM bus fed by 2 FM modulator synths and the level of FM can be adjusted for each partial. Each partial can be panned left to right to give increased stereo richness. Each one has its own envelope with velocity response and amplitude tracking of the pitch and can be set to any pitch ratio. I was so proud when I got it finished that I even made a short video! It was a steep learning curve for me but having an end goal in sight helped me to find my way through the Flowstone basics, kindly helped along the way by some of the forum wizards. I've always had a keen interest in additive synthesis so I started off with a high ambition to make a monster synth with lots of additive capability, and more besides. This was my first project made with Flowstone.