It'd be nice to have it so that you could set the primetower in cura to be another model, one that doesn't depend on color/material. That way you wouldn't have to waste a bunch of filament since you'd be printing a model you wanted to print out anyway. Another cool feature would be the ability to have the nozzle wipe into infill which would eliminate the need for a prime tower. I don't know if this has been requested before or if it's possible, but I figured I'd ask since it's a feature I'd love to have implemented in the software.
Either way, love Cura! Thanks for making such a good slicer.