Forcing Local File Linking only? Remove ability to Upload?

Hello! I’ve modified my tk-multi2-publisher to only do local file linking, and handle our own transcoding of web playable content for movie files on our render farm.

Is there a way to force local file linking only on our Shotgun webpage? Or at least remove the ability to upload?

I’ll have a AMI that will give the option to send a locally linked file to our render farm for a web transcode if it wasn’t added from our Publisher, but want to limit any and all uploading to our instance. It will be very confusing for our users.

I can block the creation of versions for a user group… but then they’re obviously unable to use Publisher.

Thank you!