Of course it works with JS plugins as well

, so if you find one with pitch wheel control you could use that just the same. Tracks I use for MIDI all have ReaControlMIDI plus an instance of MIDI_Tool II inserted. MIDI_Tool gives me control over velocity scaling and transpose which I miss in ReaControlMIDI.
Also worth mentioning: Even if you don't need an envelope, it's great to have some track control knobs with parameters you often use on the track headers. Assign/learn the controls you want and save as FX chain, so it's easy to achieve next time.