Engage the channel you wish to copy. Adjust the knobs until they stop flashing. That is what is saved. Is it still the channel you want to copy?
Yes- engage the copy location channel and double click to save.
No- engage the copy channel and adjust to taste and double click to save.
It's been ten years since I was in charge of a Deluxe so I cannot guarantee that's the process but give it a go.
If it's a fail I guess you'll have to go to tech21nyc website and upload the manual.