The creator of the museum rearranger mod? It works somewhat well, but what still isn't fixed is the fact the window can interfere with placing objects. If there's a way to point me to a thread if he has one, or a method of contact to ask him with helping remove the window when placing objects or putting the window in a way that doesn't interfere with placing stuff on tables.
Someone rang? I'm guessing the game window is what you are referring to? *edit* Played around with the mod and saw that it was probably the inventory menu that was getting in the way. I included a way to toggle the menu with a config key "T" so that it shows/disappears. Also I updated the mod to 1.1. Go grab it on nexus! P.S. The picture below shows the museum with the pesky menu hidden. Link
THANK YOU SO MUCH OMG, that menu has been making it difficult for me to rearrange the museum which each new piece I have. You are a lifesaver. ^.^