I hadn't thought to look at that. I checked all the PhilC scripts like Poser Pen Knife and Tool Box but finally Structure came to the rescue. He's made a Node Tidier script that does just that. If anyone else needs it you can find it in the thread at the SM Poser forum. https://forum.smithmicro.com/topic/2265/looking-for-a-material-room-script/12.