Just like using a normal ala boss pedal with no presets, just knobs. I gig in a different venues all the time. I use a lot of delay. I usually change the settings of my delay depending on the venue I'm in. I think it would be a cool function.
I'm not a preset guy (defeats the purpose of me getting a TF I know) but I think out of all the delays I've gigged with ,the TF has the best repeats out of all of them. That's why i stick with it.