I love the new group functionality but I'm having an issue and I also have three requests

Issue: The REST API doesn't seem to be working for the new deviceIds variable. I put two ids in there, separated by commas, and it barfs saying there's no devices to send to.

Request 1: Let us define our own custom groups! I have a buttload of devices in my Join account:

• Work Desktop Win10 App
• Work Laptop Win10 App
• Personal Tablet Win10 App
• Work Desktop Chrome Extension
• Work Laptop Chrome Extension
• Personal Tablet Chrome Extension
• Personal Nexus 6 Android App
• Personal Nexus 10 Android App

I would like to be able to define a group that contains the Win10 apps and the Android devices, but not the Chrome extensions. Or two other groups: Work only and Personal only, both of which would have a mixture of platforms.

Request 2: Piggybacking off the request above, can we get unique IDs for each group we make? This would be fantastic for scripting. I could have a check to determine the source of the message and send it to the appropriate groups.

Request 3: Failing that, let us send to all of our devices using the API without having to append each device to the deviceIds option? That would at least give a lot more functionality than is currently available.

The requests are based on my current usage of the wonderful Pushover app and service. I have notifications sent to me for all manner of things (weather alerts, IRC, torrents, reddit modqueue, messages from my router (using the email gateway), and I'm toying with a writing a script to help me keep track of bus times in the mornings), and they hits all of my Android devices so I can see them no matter what. Problem is, Pushover doesn't really have any apps that integrate with Win10.. whereas Join does. I would LOVE to get these notifications directly in Win10.. right now I have to use Join to forward them to my Win10 devices, and it just feels janky.

Thanks for the consideration!