Task List migration/connection

I’ve currently got a school issued task list that’s aligned to the state framework, and a personally built one that groups my tasks by IRCs instead of by state standards. I’d like to be able to have either of those lists update the other on a manual quarterly basis, perhaps using the migration tool to do so. I’ve seen that only administrators can do the migration, assuming that would be from an old to new version of the tasks, but in this instance I’m looking to work on my credentials task list and have that update the school task list, not actually replace the school task list.