Discourse BCC

Is there any chance to enable custom groups to use this plugin, similar to Changes coming to settings for giving access to features (from trust levels to groups)?

I have a use case where a course lecturer sends the same questionnaire via PM to the course participants occasionally, but wishes to receive separate responses from each one.

Being able to assign a custom group (e.g. organizers) in addition to staff to use the BCC plugin would solve the problem for them in a big way (they’re currently sending dozens of identical PMs).