When I was looking at the Antidote furniture, I noticed that when I clicked on a furniture item, a small box came up, rather that being able to move it into the dressing room. This is just for furniture, and if you try moving other furniture items, not just Antidote, the same thing happens.
I guess that if you want to be able to see what the items look like, you'll have to find them in the Minishop rather than the Starplaza.
Do you like this new way of buying things? Do you often buy furniture in the Starplaza?