Add the ability to save group settings. This would allow the user to setup multiple groups and save the volume levels. The user can then easily go back to a previous group without having to adjust the volume levels all over again. I am constantly adjusting the volume levels because I have different speaker and room sizes. I try to adjust it so that the volume levels are even throughout the rooms. However, I often change my groups depending on the occasion. This is a hassle as I have to go back and readjust the volume levels. It would be nice to just click on a saved group and have all the previous settings.