I cannot seem to find out how to insert a blank side. The instructions do not seem to be for 15. The product is on trial, I know it should perform the functions I want. The functions are similar to other video products on the market.
I'm not sure exactly what you are looking for.
Of course, one option is to create a blank photo in something like Photoshop or Photoshop Elements.
Empty space can be created by dragging clips apart.
Black video or a color matte can be created in the Project Assets Panel. The color matte can be white, black or any color like red.