I have a few questions about Chord Tracker and my sx920

I am a guitar player using the sx920 for backing, 

• How do you edit the chord sequence (Style, Tempo, Variations, memory points) after the chord tracker sends the sequence to the sx920. I want to be able to save style adjustments and be able to call up the song in a live performance. There does not seem to be a way to manipulate or save anything with a chord tracker sequence?
• I change the key on my chord tracker app before I sent it to my sx920. The song is not in the new key on my sx920 when it gets there. Should it be.

I am using an Android device with chord tracker.