When we replaced the gas-lines last year (out of date), I looked at putting in a line from the locker to the BBQ. After checking it out with the gas-fitter, decided it was more trouble than worth.
Ended up mounting a separate Gas Bottle on the Stern (in a small locker with Drain), dedicated for the BBQ. Works well, and means I can turn it off at the bottle when not in use very easily.
We left the gas splitter under the stove, but we did fit an
Electric Solenoid in the gas locker, and
remote switch for it near the stove. Ours (2011 Model) didn't have one as standard.
Given how much we use the over, (none/never!), Probably going to pull it out. Will remove the splitter then and just have line direct to the stove.
Photo's in my other thread 'Refit for a cruising boat'.
Regards
Mark.