Hi @SebastianK8,
I've taken a look at this, and this would indeed require changes on the Horizon agent side. The USB redirection component processes almost all of its configuration before DEM gets to perform its logon activities; only the USB redirection enabled/disabled setting that can be applied with DEM Horizon Smart User Policies is picked up afterwards.
You can allow specific VIDs/PIDs using Horizon Smart Computer Policies or using an elevated task (which allows targeting based on user/connection conditions), but those settings won't be picked up until a session reconnect. Hardly a user-friendly approach ![]()