I really enjoy using the program and I really enjoy using the custom features on all the instruments to accommodate my students, but drums seems to be the only instrument that doesn't have a customizaion.
There are some mediums that do not have the customization option. Those mediums which you can't customize are multiple part ensembles, piano, or snare drum. We do hope to add this in the future, but it is not in our immediate plans. We'll chalk up another vote and keep you updated on any developments!