Yes, switching from ctbrec to WSR without losing your list of models is very straightforward and simple. Open WSR, go to “Monitored Rooms,” select “Import Monitored List,” and then select the JSON file `models.json` from the ‘config’ folder in ctbrec (if you don't see that file, use the Export Models option in ctbrec first).
After following these steps, all the models you had in ctbrec (including groups) will be added to WSR