text input node for shader editor

Would be great if there was the ability to have a text input node, this way you could enter text into a group field. Handy for creating layered materials using mix shaders for example because the user wouldn't have to dive into the group to choose the attribute node's name parameter.

This would mean the name property in the attribute/vertex colour node would have an input socket which connected to a group input.

Or perhaps ensuring every property of all nodes have input sockets?