Trophy owners - what is this for?

Betty and  have been buddies for almost four years now, but I still can't fathom what this lever is for.  It sits behind the front facing seat and the sink unit so if anyone knows, please share!

I think it might be the lever that activates the ejector seat.
See if you can persuade someone to try it !

Initially I thought it might have been the release that allows the seat to slide forward, but I suspect that is a knob on the front face of the seat? If you open the seat base up, can you see any evidence of its function from there?

If it is the same as my (now sadly sold) 1995 Trophy then it may be this: the seat by the door is mounted on a metal base that has two greased metal rods about an inch in diameter, each running transverse across the van. These are welded to the metal base, which in turn is bolted to the floor pan. The seat sits on its own lighter metal frame. This frame is held to the floor by two metal circular rings that are 'threaded' onto the aforementioned rods, part of the metal base bolted down. This contraption enables the whole seat to be moved laterally across the van, the rings sliding on the rods from one side to the other, with about 2 inches of free movement. The picture that you show is the lever that lifts a latch and releases the seat so it can be moved. Try lifting the lever and then pushing the seat either towards or away from the sliding door and you should feel some movement.
My theory is that this enables the bed arrangements to fit better, i.e. When the single seat is opened out to form a bed, it can be pushed slightly closer to the bench bed so there is no gap.
Hope that helps!
Regards
Chris

I must try that a bit later Chris, thank you. I didn't think it could be for making up the bed as you would not be able to access it when making it up as the double, but have noticed a gap when pulling the side facing bench across (being a bit shorter, I do this and sleep diagonally as I find it easier than messing about making up the single!)

In my bumph that came with mine it said that it enables you to move the seat more into the middles to make it a slightly better position for the passenger travelling in it :-)

Yes it is just to move the seat a little more inboard to get the passengers head furthur from the side window. Its rarely used (or missed) so it tends to jam up.

Yes,  in my handbook ion the Topaz,  t says move  the single seat further to the middle of the van this is the   travelling mode.