Hope that helps to answer your 2nd question.
E. General Systems
Application of PITOT HEAT is automatic.
When the engines are shut down, the pitot heat is automatically turned OFF. When an engine is started, the pitot heat is automatically turned ON. In A new EICAS CAUTION has been added called “PROBE HEAT” to indicate that pitot heat is OFF.
for further details see:
http://www.flightsimnetwork.com/efpa...IC11Update.doc
Another location with very helpful information's about the 767 can be found here:
http://www.smartcockpit.com/ => Boeing 767 => Ice & Rain
Actually these information's are for the real 767, but you can use them for your PIC 767!!!
Strongly recommend to remove your "self-made" pitot heat switch, you will only mess up your PIC 767 with it!!!
Sam