One of the advantages of using the Revoice Pro Link ARA plug-in is that it allows you to save the whole project using Reaper's commands Open, Save, Save as..  Not only will these commands save and load Reaper's project data but they will also save and load  the session data from Revoice Pro.

All the ARA data (in this example derived from Revoice Pro's processes and sessions) is stored in Reaper's project folder, making any project with ARA much more portable and re-editable.