Fuselage suggestion (hideFronts and backs)
I have this idea where you can have hidefront and hideback and overridehide on all fuselage blocks I don't think if this is a good idea but we could be customizable with these feature like glass fuselages
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C S commented
I feel like what you've described is basically the "Hollow Fuselage".
However, I suspect that the main reason you want this is so that you can zoom through your build without all the visual annoyances of the "fuselage bulkheads" showing up. So that you can easily find and edit interior (hidden) parts.
If that's the reason behind this idea, then I agree, that'd be really nice. :P
My personal way to work-around that is using Fine Tuner to Nudge the part out of the way by a whole number (like 1.0) to gain access to the small parts that are hard to find. Then when I'm done, move that big part back into place. Which I agree, is a lot of work for players to do when enabling "Backface Culling" is a thing in the graphics world (and already coded for with Glass Fuselage, as you've pointed out!)