Feature Request - Save group as template | Collapse group

I love the new feature to save node templates... it seems like it would be very easy and very useful to be able to right-click a group box and select "save as template" to create a template with that group and every node in it, including connections. I setup group boxes as if they were programming functions, using reroute nodes as input and output connections, and this would be extremely useful to me:


Also, being able to collapse a group box like you can collapse a node box would be great as well.