While I realize my inability to dive deeper than the first few pages of a search result may prove to bite me here I will pose this question anyway. I have decided to go the non-conventional route on my slider door window and install a window smaller than the size of the factory cutout. My question is this, what to do about the vertical support in the slider panel? Whereas all the other potential openings are supported by removable-ish pillars the slider support is integrated into the interior skin. My instinct says to dadoe the wood-frame shim I'll be adding where the support would otherwise negate a smooth flat surface. Anyone installed something similar or contemplated doing so? Comments, laughs, finger pointing appreciated.