Power beyond for #712 loader valve from 4000HD

[MMM]

Anyone know if there is a power beyond option for 712 loader control valve (2 spool w/float) ? There is a plug in the 'out' port of valve. Loader7pump/controls setup originally came from 400HD and I don't have info on anything else(gpm, relief set,valve mfg) . Want to plumb 3pt hoe in series with loader.

Thanks,
Mac