Ok for anyone that has this radio (Btech gmrs pro), I was able to figure out how to save Ham channels for monitoring.
From the mobile app, you go to Device Settings, and then Channel & Groups. The FRS and GMRS channels are all saved in Group 1, so I put my local Ham frequencies in Group 2. I believe there are 6 groups and 30 channels in each group.
I found it more challenging to program the Ham frequencies from the radio. You have to use the two function keys just below the screen to enter into the right screen to be able to edit channels.
My next question I am trying to figure out is whether I can Dual Watch from different groups, meaning can I monitor a GMRS repeater channel from Group 1 while also monitoring a Ham channel from Group 2? I may have to program my local gmrs repeater into the same group as the Ham channels that I would want to monitor.