you have your LMS connected to Mobius and some of your students need extra time in tests. However, some students in the LMS do not click on a link to Mobius, so there was no account for them in Mobius. But, these students needed extra permissions via proctor tools. It is possible to manually create accounts in Mobius that match the user info in the LMS and that would be fine. However, for a large number of students, this isn't suitable.
It seems that other LTI tool providers allow a 'sync users' button in the LMS. So you (the instructor) click it and all registered users in that LMS class automatically get an account in the LTI tool - problem solved.
It seems like this might be possible if Mobius utlised LTI advantge.