Add a program to the Toolbox\Maintenance menu that would run a designated amount of nozzle cleaner filament through the nozzle. Selectable variables would be nozzle temperature and length of filament used.
This program would facilitate changing types of filament such as from TPU to PLA to avoid the old filament from bleeding into a new print.
I suspect (speculation on my part) that the OP knows how to perform the task manually, but is requesting a convenience setting. I also suspect most of us that are familiar or have some degree of experience with 3D printing also understand the value of using cleaning filament.I personally perform the routine on a fairly regular basis as part of my regular maintenance regimen. IMHO, anything we can do to maintain print quality is a good thing, and if we make the process easy, even less experienced owners might be tempted to do it. My two cents worth on the topic…