If I am using the goggles with my phantom 4 pro, I cant use a smart device as well. How can I set the return to home height? Thanks-J

Connect your smart device to the RC and Phantom 4 pro, set everything there. The setting value will stored in phantom 4 pro so the RTH height will be there when you use goggles

I have my rth set for 60m , while using goggles I hit rth and mavic was ascending thru 350 ' when I took over manually

OK, I connected goggles, went to rth menu and reset rth altitude to 65m , then went out and tried it and worked perfect. I don't know if earlier test was a fluke or if rth needs to be set with goggles connected, but it works now