Format Some Files As Cards and Print Multiple to a Page on Compile in the Beta

Hello,

I’m currently working on a project that will have some components printed on normal pages and others as cards. I’m wondering if there’s a way to set some files to display a writing area with the same dimensions as the cards, so I can have a better idea of how much I’ve written in comparison to how much space I have. Similarly, when I compile the project, it would be nice if I could get more than one of these files placed on a single standard page, preferably with borders, since they’ll each be much smaller than a standard page

Scriviner’s great for organizing all of this, but the formatting requirements go way beyond what I’ve asked of it before, so I don’t know if it’s even possible to do any of this, let alone how I’d go about it. Any help in figuring this out would be appreciated.