Hi @JCzarnecki
In relation to the flag being TI controlled, I recall this being a relatively recent additional for one particular customer and we have not prioritised making it a user controlled flag, as if we do it would need to be made available on a course by course basis and this would be a large effort. Only a couple of client have used this to date and they have taken the same approach that you are suggesting. Activate the flag for a certain period of time and then turn it off again.
Once the flag is turned on, the certificate will only be regenerated when the learner, or an admin, clicks on the button to view the Certificate. After the flag is activated I would advise you to circulate a communication to all the recipients informing them how to regenerate their cert.
Unfortunately there is no way to know who has, or who has not regenerated their cert so providing the learners a set time frame, and then reminders coming closer to the the Turn Off time to encourage them to regenerate.
There are no known down sides, however as the certification process, specifically the recertification loop, is pretty complex and has a lot of settings we cannot guarantee 100% that all combination and permutation of settings will work searmlessly. I have no reason to believe it wil not work but I have to give the caveat to ensure it is tested with your settings.
I hope this helps and reassures you, but please let me know of you have more questions.
Kind regards
Jon