http blue iris

We moving our cameras to a Blue Iris system, and we have a Unifi UVC-G4-PTZ camera we have got streaming over RTSP into the system. Blue Iris has a custom HTTP for controlling the Pan-tilt-zoom in the camera, but I cannot determine the correct commands to get the BI controller to pan the camera...

I am using this command to try and trigger an alert http://10.0.0.111:81/admin?camera=Cam1&trigger&user=admin&pw=password returns Authorization required But that is the correct username and password according to the desktop app, re entered it and changed it. any advice