NSRP no longer requires registration (as of September 29, 2021) If she just wants to practice via telepsychology and does not want to practice in-person. That would mean for utilizing telepsychology only she does not have to get a letter from CPO or to go on the Courtesy Register.
I would also direct her to below URLS from the website and PDF document on the topic.
https://www.ns-rp.ca/information-for-registrants/telepsychology/
https://www.ns-rp.ca/downloads/Cross-jurisdictional_telepsychology_services.pdf nWith the changes, requests for Courtesy Registration for Canadian Psychologists doing telepsychology only should become rare, hopefully, as it will cut down on unnecessary work for NSRP.