How do you rotate objects on cruise ship tycoon?

Controls

Left clicks will navigate the menu system, while using a right click on buildings, structures, and people will show their stats, information and needs or wants. Also, when placing a building or object, pressing the right mouse button while the object is still in your mouse cursor will rotate the object 90 degrees.

Evidence:

I have the game and i checked the Cruise Ship Tycoon Manual Controls

Hoped it helped :D

~Kim Possible xD (im not a user of wiki so i just put my nickname)