Is there a way to take a "snap shot" of one frame that I could export to my computer? For example, if I use one of the Descript templates to make a thumbnail for my video, can I isolate one of the frames to make an image, then export it to be used for things like YouTube? Or, do I have to make my thumbnail image in another software and upload it to my Descript. Note: I like adding a couple seconds of my thumbnail to my videos so they are more complete if I need to share them where there is not an option to add a thumbnail later.