In order to arrange rooms, please go to Property Setup Menu and click on Auto Arrange. Doing this rooms will be auto arranged in rows and columns.

Optionally you can also arrange rooms in a specific layout. We recommend you to arrange rooms as per their floor plan. You can click on a room, hold down the mouse button and drag the room to desired location on screen, and release the mouse button. Once you are done arranging rooms click on Save Position menu.