If you're on iOS check out the app midiLFOs. Using MIDI cc's you can map up to 4 LFO's to most Caustic functions. The LFO's can also modulate each other. Waves include sine, sawtooth, sample & hold and a few others. For instance, I mapped a sine wave LFO to filter cutoff on a Subtractor and got a nice slow filter sweep that is not locked to Caustic measure lengths. I used a second LFO with a Sample & Hold wave to modulate Osc 1 Mod Amount. Pretty crazy!
midiLFOs - midi modulation toy by Arthur Kerns