As far as I know, there’s no way to select ( control + left mouse does nothing ) and edit a group of sockets in the socket manager tab while editing static meshes.
Editing sockets one by one can be very time consuming when you have to edit 50 or 100+ sockets per static mesh and many mesh while you need to set the same parameter on many of those sockets (let’s say tag name or preview static mesh) and it could be done in few seconds by selecting all those sockets and set this paramater