[Plugin: Omni Secure Files] Limit Access to Directories to Specific Users/Roles

Hello,

Is there a way to limit which users (or roles, either is fine) have access to specific directories for uploading and downloading in Omni Secure Files? We’re using it to share files between ourselves and groups we collaborate with, but we’d like it if the collaborators only had access to their own files. If it can’t be done with Omni Secure Files, is there another plugin that provides similar functionality (e.g. ability to upload large files to directories we designate) that does control access that way?

Thanks!