I dont understand how to select the correct program on my phonak q50 . Is there a chart of program functions?

new to aids and received recently bolero q50 but dont quite understand how to select programs. Is there a chart of program functions somewhere online ?
What is the proper technique for adjusting? i have user manual but it doesnt seem to say.
thanks for any help or links;

The Bolero doesn’t come with any manual programs by default, so pushing the button on the hearing aid won’t do anything. Your dispenser has to add programs before you can select them.

Thanks for reply. What would usually be set on channels. my old aid had 2 channels with slight variations of audiogram , and one channel setting for phone. the phonak has different musical tones/beeps so i guess something left from previous owner?
thanks again;