How to mod off-the-grid cc?

I want to make some furniture (base game, Maxis created) available off-the-grid, but for the life of me I can't figure out what needs to change. I'm already in Sims 4 Studio and Object override, but I'm not sure where to go from there as I've checked out the information on both an off-the-grid object and the object I want to change, and I don't see anything related to whether or not an item is functional off-the-grid. Thank you so much for your help.