Some nodes need input socket to change Enum option

Eg for glossy BSDF, there are drop down menu options GGX, Beckman, Sharp, Multi Scatter GGX

or for subsurface scattering nodes, we may hope to change Random walk ,Christensen burley (and other options)

but these drop down options do not have input socket to make switch which can change option. So when I use these node, as group nodes, I often need to duplicate same nodes, then use mix node and the factor connect as new input socket,, but it make more complex current node groups.

Then hope those nodes which have Enum proeprty, will have input socket which user connect E-num options, then. It will offer same drop down menu as group nodes E-num property