I have recently bought an apartment and have also purchased a miniature aetheryte which I would like to place outside the apartment block. I have the miniature aetheryte in my inventory but can't work out how to place it. I have tried dragging and dropping it but that doesn't work. Can't find any menu item for this. I have used the Housing menu to place items inside my apartment with no problems.
I have searched the internet but no luck.

There must be a simple thing I'm missing.