iCam doesn't currently have the ability to control PTZ cameras.
Other users have requested the ability to control their PTZ cameras, and that is on our list of potential features to add to iCam in the future. Unfortunately, I can't give really give a timeframe for the feature. When deciding which features to add to iCam, it really comes down to which one is requested most and how difficult it is. Adding PTZ for each different camera manufacturer is a complex process.