Keying> View group
The View group designates what View mode you see in the Comp Window, and lets you split the view to see your keyed footage in various states simultaneously.
View pop-up
While using Primatte Keyer you will need to switch back and forth between different views to accurately build your matte, and this menu is where you make your view choice. When in the Split Screen mode, this menu is where you select what is seen on the left side of the screen.
There are seven View options.
Split Screen checkbox
Splits the Comp Window into two different views of the image. The Split Screen checkbox toggles the split screen effect, and it is turned off by default. When it is enabled, the split screen is visible.
Above, Split Screen shows Matte View at left and Foreground View at right.
Right pop-up
When Split Screen is enabled, this pop-up chooses the View display for the right side of the Comp Window. The menu options are identical to the View pop-up. If Split Screen checkbox is turned off, the Right menu is grayed out and has no function.
Amount
Sets the location of the Split Screen between left and right sides. The default value is 50%, which sets the split at the middle of the Comp Window. Lower values move the split to the left, and higher values move it to the right.