How to use collision many many component

Hi guys I have a few boundaries in grasshopper and I want to check for many collisions but I’m not sure on how to use the component. I’m trying to a test whether furniture in the bathroom has overlapping boundaries thanks. I can find it using the collison one many tool just not the collision many many tool (in green)

Many Many works against one flat list of Many, whereas One vs Many is a list vs list.