Question about a specific Youtube end screen pack

|### Rich Babiarz|2:18 PM (1 minute ago)||

to Envato


I have a question about this Youtube endscreen pack at this link.

I have downloaded template pack and I am editing end screen 3. I am able to edit colors and typefaces but I would like to also turn off (or delete) the previous and next video frames at the left of this animation templates. I am not able to choose to turn them off or select and delete them. Is this not possible? If it is possible, how do I do it? Thanks.