Split-screen view allows you to view images and clips as well as the full worksheet on the same screen. Split-screen view requires a browser window with a minimum size of 1590 x 790 pixels and images to be at 100% zoom. The local computer's zoom ("desktop zoom") Must also be set to 100%.
Access Split-screen by clicking 
, which only appears if the browser window is large enough for Split-screen view. You can click and drag the left edge of the worksheet to adjust its size.
Note:
There are some general shortcuts that will allow you to increase, decrease, and reset your browser's zoom settings. Below are the standard keyboard shortcuts for most browsers:
-To zoom in, press down the "Ctrl" key and the "+" key simultaneously
-To zoom out, press down the "Ctrl" key and the "-" key simultaneously
-To reset to 100%, press down the "Ctrl" key and the "0" key simultaneously