I often start with a preset scale when using the sequencer function, and when I do, I sometimes want to tweak a note include/exclude or the Chance setting for a specific note. Right now, I need to switch to Custom, and then change all the settings to match the Preset, except for my slight changes.
I think it would be a great enhancement to the UI if the scale elements were active, and if I select or drag them, the preset would switch immediately to Custom and I could make additional changes in place. Let's say I want to alter just the Chance of a note. When I click that setting, the preset should copy itself to Custom and then I can edit anything I want. If I make a mistake, I can always quickly choose the preset again, and start over.
Another option would be to simply have an element that allows me to copy the preset to Custom, and then I can switch to Custom to make further changes. In fact, that might be even better, so I'd be warned I was about to overwrite a custom scale I already set up.
