Can I use the iOS CCP software app from outside the home internal wifi network. current setup is with mrx-1 controlling the devices.

Example: Turn on Air Conditioner from work location etc..

Only with their Total Control system.

THEORETICALLY using the right VPN you would be able to make the CCP iOS Application work from offsite but I have never seen it working... it would require pretty advanced VPN work and I haven't spent my time researching it personally (TC has it built-in and doesn't require VPN - just port forwarding).