I created an instructable on how to use a single remote control to connect 1 to many Canon cameras (and some other brands). The remote is powered and operated by the Duet board so you can now send g-codes at layer change to take an image (and do much more).
This remote covers some 20 plus Canon Cameras and some other brands. I'm sure the principal applies to other remotes as well.
You can find the instructable here: https://www.instructables.com/id/Duet-Controlled-Timelapse-Video-Using-Camera-Remot/