Looks like we both made typos, sorry. I really wish the SourceForge forum let one edit their posts to correct mistakes.
As far as the geometry goes, I can't use a floor to make a graceful non-segmented curve like a wall. Unless I use walls to make the inner recess edges from walls and plug the middle of these walls with a shape generator solid and combine everything as a single object in order to make myself a "subtraction plug" that way and maybe then use this plugin. I wonder can this plugin tool be used to subtract from or slice into a wall itself?