On my website (via WordPress) I have some of my clients listed. When you click on one of them you get a video gallery with all the Videos I’ve done for the corresponding client. All of that’s done with ACF (advances custom fields). Now I want every video to have a corresponding poster image. I know that I could do it manually, by putting the code in each time, but I’d rather have the ability to create a custom field and have it done automatically in the future. Does anyone have an idea on how to approach this?