It would be very helpful to be able to save multiple configurations of a custom exercise and recall them as needed during exercise configuration.
For example, let's say I'm doing "Interval Singing" with the major scale. During the exercise I realize my minor 6th and 7th down are weaker than the rest of my intervals. I'd like to be able to save a configuration with all of the intervals, and then another with just m6 and m7 down. That way I don't have to spend time every day selecting and de-selecting intervals - I can do a round with all intervals, and then immediately follow it up with another round of m6 and m7 down only. This becomes more and more beneficial as I add more configurations to my repertoire over time.
This would also be a big time saver when working with more complex exercises e.g. "Melodic Sight-Singing", which has many useful configuration options.
