Barry, if your intent is to push or pull the engine along the track until you can reach it then IMHO, a grabbing device is probably the wrong tool to use considering the fact thay when held horizontally the grabbing part will also likely be horizontal unless the grabbing end can be locked at a 90 degree vertical angle down from that horizontal shaft. Also in which direction will you be pushing and pushing against what part of the engine? Against the rear of the engine's cab roof edge [certainly not pushing on the tender] or pulling the front end by grabbing onto what? Pulling from which part of the engine's front end [and yes, there are many delicate parts there to contend with]. If you're planning to grab onto the cylinders from above be certain the grabbing tip will extend that far down while clearing the top of the engine. Personally trying to manevuer it successfuly into position and then moving the train along the track to where it can be reached seems as much trouble and effort [without a guarantee of success] as it would be moving items off the layout so you'd be able to successfully reach and move the engine along with your hands.
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