Quite a while back, SimGuruGraham tweeted about a hotkey that no one seemed to know about. It's been a while and I'd forgotten it but wanted to find it again and it could be quite handy.
@Twinmum helped me find it again. I'm tagging
@Carl on this so it can be added to the hotkey list on the guide.
Here's how it works. When buying a new item (you click on it from the catalogue),
but before you place it, use the + key on your number key pad on the right of your keyboard to cycle through the design options for the item. Once you're clicked to place the item, you would need to use the Design tool to change it.
I hope you find it helpful.