First off all. The Atem Camera control panel does not support any PTZ camera currently!! Also the panel is not available until at least this summer. This panel is only designed for Shading of the Ursa and Studio cams of BMD!!
If you are talking about PTZ control from the Atem this is possible with VISCA compatible cameras.
Take a look at this topic for more information about Visca control on the Atem switchers
Atem Visca camera control
For this you NEED a BMD 1me or 2me control panel in order for this to work. And functions are limited to Pan Tilt Zoom. (So no control over Iris, shutter, presets, etc yet! )