HuddleCamHD HC-JOY-G2 Serial Controller Joystick

Will this work with the vaddio clearview hd-usb ptz camera? i have three cameras i want to control.

Can you use put cameras in "standby" mode or power them down using this controller?

Can Visca and Pelco cameras be controlled in parallel with this controller, or is it limited to one protocol connection?

Can you pan and zoom simultaneously? Or does it stop one motion to do the other?