I use a Macbook Pro. I can get presenter mode to work perfectly when connected via HDMI in an equipped conference room (Touch10 / WRK or WRK+), though can only share whatever view is on my Mac's screen when sharing wirelessly - either connecting and sharing to the device only through webex client, or when my Mac is joined to the Webex and sharing from within the meeting. Seems like a bug, or I may need a feature request. Thoughts?