Yes. I'll try to dig out a photo. Simple though. About 12" of 1/4 hose with SAE fittings and then adapters to get up to 1/2" quick connects on each end necessary to plug into the rear remote pairs when not hooked up to any implement. That way, if you forget and leave the remote lever in the on position or accidentally move the lever to on, the fluid has a place to go and doesn't "dead head". Dead heading a hydraulic circuit is bad for the pump and can cause very expensive damage that will not be covered under warranty.
Edit: photos show on the left most set of rear remotes there is a blind loop. The other rear remote is hooked up to the topping lift. When I use my backhoe I remove the blind loop and as soon as I disconnect the backhoe I reattach it. Of note, I have often forgotten to shut off the remote valve after disconnecting the backhoe. Lots of other things to be thinking about during that operation and as shutting off the valve involves moving from the back of the tractor to the operator station it sometimes gets forgotten. With the blind loop in place it doesn't matter at all.