How does 1 go about saving a frequency to favorites with Data mode enabled?
EG: I wish to save 40m, 7.074 FT8 Frequency in favorites so that when clicked it will automatically set radio to said Freq and Mode USB-D ?
Yes. I have to double click as well.
You do not have Split set to ON.
Double click the Standard Button - Split entry and select ON.
You also need to enable the A=B for Split mode. A=B to ON.
I use full output power and adjust power out with the slider in WSJT-X or JTDX.
You need to set the Power to 255 for full power.