You will place Boxes for Text Messages below or

to the side of the top video that is plays above. 

You will place Boxes with groups of Videos (stages) below

or to the side of the video that plays above. 

Everyone should have a website like this to post and store their business or family videos. To try one for free, click on the Staged Icon at the top of the page. See a tutorial for how to use the software at  www.staged111.com