[Plugin: Pages Posts] How can i add more than 1 category?

I would like to know i mean this is a great plugin and all but i’m stuck here i have more than 1 category that i would like to make into pages and only 1 selected “category” and “all” under “Display posts from Category: ” show up.
All the other fifteen pages i can’t make into indiviual pages? So what do i do where do i go from here? I really need help and hope you’d be able to help me.As this is very important.

Thanks for the plugin.

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