USB Redirection Question that has me puzzled

Hello -

I have been given the task to disable USB redirection for all VMware VIEW users but ONLY when connecting to an external broker.  I found the attached script that will disable thinprint when connecting to an external broker and was wondering if someone had a similiar way to disable USB redirection?

I have read that I could setup a GPO and I could also setup the pool to disable USB redirection but those two options are for both internal and external connections.

Thanks in advance for your help!

This is being applied to Windows 7 x64 virtual computers