Again, the encoders like the toggles and push buttons earlier, they don't protrude much at the bottom, except the legs bent sideways.   
Altimeter's bottom. 
   
Bottom view of the SAI and clock. 
   
So there you have it, knobs beside gauges panels, switches over monitor, and yet none of them are likely to scratch the screen. 
     
Tomorrow, ADI and HSI. since these two sit on the thickest panel, they are real easy to do without risk of them sticking out too much at the bottom. I believe anybody should be able to do this two without problem.   
Although I'm not the first to put knobs and encoders at the front dash, I suppose I'd the first to 'solve' this challenge of switches over monitor and encoders for the gauges other than ADI and HSI? :music_whistling:   
anyway this is too much fun. who needs cable and TV when you can be day dreaming of pit building solutions all day?