"Author name" format not found

I have a journal style whch requires the author name(s) to display as 


i.e. NO SPACE between the comma and initials

I can’t find option in the style editor name formats to create this output.

I’d appreciate any suggestions

Thanks very much

yep, don’t think that is an option anywhere.  You might ask the developers, who will want the weblink that describes this highly unusual request.  I suggest you contact support directly.