Hi! Consider, for example, the CV-controlled panning on this stereo mixer:

https://www.modulargrid.net/e/erica-synths-black-stereo-mixer-v2

If I want to hold the mono audio at a constant place in the stereo image, say slightly to the left, during part of the song, what module emits that constant voltage? I expect a VCA with bias turned up to amplify zero if there's no input, resulting in zero output. Oscillators oscillate, but I want it to stay constant, so that the panning stays put, like a manual knob that I've left in place for now.

Things that send out voltages for pitch must emit constant voltage, but I only know about MIDI-to-CV modules and sequencers for that. These modules seem overly complex for driving a constant pan.

This is a pretty serious gap in my knowledge of how modular systems are working, but the odd thing is that I can't find any results when searching for "constant voltage" in the forums here, so I'm ignorant in a special way! Any help would be most appreciated.