Dear Engineers! I confess to mother church Keen Software House and the assembled Congregation: I am a modding idiot. I can't do things by creating mods. I can only pray to the Saints and Cardinals, be they Honorary or Designated by our Vatikan here, to do things for me and us upon my most humble request, as a faithful believer in the Holy Spirit working wonders in you, so you may find a solution which stays otherwise inaccessible to me . What this thread is all about, now and in all future unto the end of all days, Amen! --- Automerge --- CHAPTER ONE - The Book of Empty Ceilings My first request is about a gap in ceilings, like in between ceiling arc blocks as shown here. I fact it sounds easy to my modding idiot ears - basically only the plain thin wall placed on top instead of the sides of a grid. Here is an example situation: I used stone beams to indicate the borders of the spaces in between those ceiling blocks. The mod request part would fill out perfectly in and create a three block wide arc ceiling. So a closed floor would be created. Right, one could place complete stone blocks on top but that would mean a whole height level wasted. So with inserted thin wall parts turned to top side of the grid, those floors shown here would be closed. In the past, I used to fill such gaps with assembled stone beams, but because texture is different, it looks like makeshift.