Improvements in Attribute node

This is a feature request - A New String type input Socket can be introduced in Attribute node like in Principled volume node in Shader editor.

In the below Image, I have just shown an old attribute node and a new attribute node that has a string input socket which can be useful when anyone wants to expose that attribute value on a group node

Suppose anyone wants to make a node group and the attribute node is present in that node group,

Currently, if you want to change the value of that attribute name, you have to enter into the node group and find the attribute node and then change the attribute value in it,

but if this new string input socket is introduced in attribute node, Just connect that socket to the input node of the node group and this will bring out that Attribute value directly out of that node group, and then we do not need to enter in the node group.

I hope this is clear to understand, as I am writing a feature request first time on this community site so I do not know exactly how to write this but still somehow I managed to write it here.

Thanks!