[Plugin: Display Posts Shortcode] I am so confused…

I really am not usually this dense…but how does one utilize this plugin?

I am trying to split posts onto two different pages on the WordPress site that I am building. I’d like to display posts from a certain category on a password protected page and all the other categories on the main blog page.

I tried just adding in [display-posts tag=”Behind_the_Scenes” image_size=”thumbnail”] in the content area of the Page where I’d like them to display, and it doesn’t seem to be doing anything at all.

Am I missing something super simple here?

For reference here is the site I am working on: https://dev.techquility.net/dhfos/ The two pages will be Blog (for most posts) and Behind the Scenes for blog posts that are categorized specifically as “Behind the Scenes” – like the most recent post on the Blog (Mylar Concept Art, Part One).

Thank you so kindly in advance for any help you can provide. ??

https://www.ads-software.com/extend/plugins/display-posts-shortcode/