Join notification groups

I have been using join for a few days now on a number of different devices and noticed that I'm getting lost with all the notifications. It would be a good idea if we could group various devices together and set them a specific colour and or a specific subtab within the notifications tab on Chrome for example.

For example, if I wanted to send something to a number of phones that I added to a specific group I could just click on groups (located under devices in Join) and it would list all my premade groups. I would pick the group and continue as normal.
Also in the notification tab on Chrome, for example, I could click on a group tab to just see the notifications from that group. 

I think this would be a welcome update by the community.