Deploy this package to install the Sync Template Template Task and Sync Template Tasks views which can help you modify and verify Template Tasks, as well as the Template Task Override custom form which you can attach to new Template Tasks in order for them to be treated as if they were part of the original Template in a way that lets them, too, be included in future Sync Template runs.
NOTE: due to the self-referencing calculation on the Template Task ID Key parameter, you will need to deploy this package TWICE for the calculation to then update correctly