I used to have a couple of dummy accounts that I gave out, so that faculty could see how a course looked to a specific individual students--as opposed to the "switch role to" option to see the course for a generic student. That was useful to let faculty see how things like the different between separate and visible groups, or gradebook feedback.
For a mix of technical and security reasons, I can no longer allow login access for dummy accounts. Is there a way to limit the moodle/user:loginas feature to accomplish the same goal? For example, can I allow Professor A. to loginas (dummy student) Susie Q. or (dummy student) John Doe, but not (actual student) Sam Smith?