I just started using this app and so far it's great, except for the fact that I can't choose a different notification sound for individual contacts.

When I used hangouts as my primary texting app I knew who was texting from which sound eg. If I heard R2D2 going off I knew exactly who the text was from.

Now there's just one sound for everyone that texts me, other than that this app is great just please make it better.
Thanks