SPS as RD Gateway

Hello,

We are planning to deploy OneIdentity SPS for session monitoring. We want to deploy it as a Remote Desktop Gateway in front of a windows server (Session Host) so that HTTP session will be recorded and replayed as video.

I want to know if it will be possible to open multiple sessions RDP in that case or we will need to deploy Windows RDS?

In case, we need RDS, how will the license be managed? Note: We have RDS Device CAL license model.

Knowing that all traffic will go through the SPS, is this considered as one device?

Thanks