Permissions for users to use ManTra but not the TMS, and to only see their organizations' jobs in ManTra.

Can I give permissions to users to ManTra to view only their organizations? I'd like to give them permissions to ManTra, but not to the TMS.  This is so they can upload jobs and create files, then provide in-country reviews. These are our internal customers who regularly need to submit files for jobs.

Thanks,

Gina