Frames can be displayed on wall images, this is very usefull to make sure a frame fits in a specific place.
Upload an image of the wall you wish to use. Click the "Select" button and select a file on your device or drag an image in tha drag & drop area.
For the system to accurately calculate dimensions, you now need to select an area of the image and specify it's real size in inches (width or height). Putting a 8.5x11 sheet on the wall before taking the picture can help. Once done, click the "Use this photo as wall" button.
You may now click and select the wall you just added.
Done! Your frame is now displayed to scale on the wall image. You can modify the frame without loosing the wall image and move it around with the "Click here to move" button.