In v2.0 you can run the Sequencer without any note triggers... which means the Modulation Track can modulate whatever you like, while you play the synth by hand. It can re-trigger on each note, or run freely by hitting the big green 'Play' button.
If you want it to play notes, you'll have to tune them individually. It frees you from the 16 step limitation of the previously mentioned custom LFOs though, and gives you more fine tune control.
The LFOs are faster to program melodic stuff though, once you have the mod amount dialed in at 1 pip per semi tone. You're limited to 7 notes up or down from root, though. (Unless you want to make a melody out of only whole tones, thirds etc)