Node groups interface editing improvements

In 4.0, with the recent introduction of Panels (and new code in general) in the node groups interface, I think there's room for improving its editing. Bear in mind that I'm using the node group interface as reference, but this in my opinion should be considered for all current and future parts of Blender that will use it (like current asset browser and future vertex groups UI revamp).

1 - Moving sockets/panels Currently moving these feels a bit "clunky" and with poor visual feedback, and although there is text that says insert before/after , I think it should work like moving collections in the Outliner , with a black bar that shows where you're gonna move the socket, and showing the actual socket that you are moving.

2 - Select and move multiple sockets

3 - Node group interface visualization For editing the node group interface, you have to go inside the group first. While I understand the logic, to me feels a bit counterintuitive. I would expect that clicking on the node group would make appear the interface of that group, so that I can immediately edit and see the changes to its interface without going in and out of it.