Changing the PID Source to use BT

[PKeyes505]

I am using a TC4+ for control of Fan and Heater and a Phidget for RTD readings.

When I open the PID Control Settings, I only have 1-4 for the PID Source. I believe this is referring to Channel 1-4 off the TC4+. How can I switch this to use the BT from the Phidget RTDA?

[PKeyes505]

I figured it out. Unchecking PID Firmware under TC4 gives me BT Option.