Yes all MVS boards with multiple slots has this feature ,
You hook it up just like your A , B , C , D buttons are hooked up from the Jamma Harness ,
To locate the select button wire on your Jamma harness , go to this site <a href="http://www.hardmvs.com/" target="_blank">http://www.hardmvs.com/</a> and click on Tech Center , then Jamma information , scroll down to where it says you can view the different pinouts then click on here ,
Ok now you see Jamma wireing and Neo MVS wireing ,
On the MVS wireing look down where the D buttons wire is located on the harness and the select buttons wire is right under it on the Jamma harness ,
Now one of my cabs didn't have this wire on the Jamma harness , if yours doesn't , you can email Briggs the guy who runs the site and he can sell you the jamma pin and wire to add it to your harness for a few bucks ,