Consider having the option to trigger the automatic migration (for ThemeBuilder Ultimate and Enterprise) and Export options simultaneously for multiple projects.

Benefits as pointed out by a user:

""...

I'd rather start a batch job performing all of those tasks (it might even be a dry run just pointing out issues) and generate some "editor-readable" results) 

I can then review all of the outputs in a single step, adapt those with issues, or exclude them from the next batch run, which would automatically migrate all of the projects without issues. The workflow would boil down to those themes with issues (which is perfectly fine). Right now, I have to go through all of this manually, which takes a considerable amount of time... "