Hi all.

Solved the problem; homemade solution. Here's the (grey) TO/GA switch from the default 737 installed in my 737 classics panel at just right of bottom centre next to the trim wheel:



And here's the (brown) switch from the default 777 in my 767 panel at left of bottom centre:



Here's how I did it: I created a new window in the panel.cfg, sized so that it only shows the TO/GA switch from the throttle quadrant rather than the whole thing. Then, making sure that the window is visible, you can place it anywhere by varying the window_pos position. So for the grey switch as in the 737-300 panel above, you'd have:

[window_titles]
windowXX=TO/GA

[windowXX]
position=0
visible=1
window_size= 0.070, 0.040
window_pos= 0.762, 0.933
gauge01=737-400!Throttle Quadrant, -275, -4, 400, 920

and for the brown switch as in the 767-200 above, you'd have:

[window titles]
windowXX=TO/GA

[windowXX]
position=0
visible=1
window_size= 0.070, 0.040
window_pos= 0.411, 0.939
gauge00=Boeing777-300!Throttle Quadrant, -250, -6, 400, 920

Just copy and paste these sections to the appropriate panel.cfg file, position the switch and you're away!