That would be really nice. Thanks for bringing this up.
I don't know how Timelapse+ talks to the camera, but I talked to Elysia Visuals who makes the Ramperpro and it uses Picture Transfer Protocol (PTP) and requires a USB connection. And for the Holly Grail time-lapse he needs the jpg preview to change the exposure etc. And I was told that the XF and IQ3100 does not use PTP.
Things might have changed a lot with the IQ4
I did get other controllers to work that just need to trigger the camera. Here is a little write up on them.
https://uptownguydenver.com/copy-of-external-triggers