It’s at the “share” symbol.
It keeps flashing/fading in and out as if it’s working or something. I select “Save to My Tones”, the progress wheel/circle flashes quickly, then nothing else happens.
If I repeat the procedure while not connected to the amp, a small green banner on the bottom of the screen shows up, saying “saved successfully” or something similar.
I am using iOS 12.1 with the simple Apple adapter with only a USB in the other end, without an extra ligthnimg port for charging.