It would be great if the same customizations that is possible pr. contact could be made on contact groups! Especially the notification sound.
I am member of a volunteer rescue team. We have a leader group that calls out to all volunteers. When I am on duty I shall modify sound on all leaders and back a and back again after duty. It would bee much easier to place the leaders in a group and customize the sound that groups :-)
Priority of customization could bee general / group / user