Sorry to say that but none of your proposals is working.

Here is my contribution.
//--------------------------------------------------------
[Window01]
Background_color=0,0,0
size_mm=36,190                             //168
window_size_ratio=1.000 
position=7
visible=1
ident=11101
render_3d_window=0
window_size= 0.035, 0.292
window_pos= 0.000,0.722                            //0.750
zorder=99
type=special

gauge00=Captain_Sim.p722.tools!icons,  0,0,36,168
gauge01=../Civa/Ins!MsuPanelIconL,     0,168,18,22,11041
gauge02=../Civa/Ins!CduPanelIconL,    18,168,18,22,11041

Both icones open the window but I didn't give the gauges a try yet. (too warm for my PC)
Later on I wish to create a new window window 11 calling the MSU window 12 calling the CDU.
W'ill see what happens.