I can use a hand here.
I read the Angular documentation, but I couldn't find answers to these questions. It could be I'm calling things by the wrong name.
I'm not sure if I'm using the right terminology, for example, I get confused between portfolio & gallery but i'll give it a try...
Is it possible to select a different thumbnail (the 233x173-ish image in the portfolio)? In other words use a detail of the post image or a separate image for the thumbnail of a post. (a post is what opens up when you click on the thumbnail image right?)
Is it possible to use a video thumbnail so the user can play the video right in the portfolio?