I just discovered how to do this, but can not get my Logo10 model in Aerofly to give -ve pitch

so no inverted flight!!
Anyway.. go to advance heli menu thr-curve. Use the select button to go up to NORM and rotate the dial. IDL1 or 2 or 3 will show and then you can go down to MIX and change the INH to OFF. This then changes when you move the E switch. It enables the Thr and Pitch curves at the same time.
Jeff