Could you be more specific? Do you want to be able split one post into two parts?
Then insert in the middle of the post:
<!--nextpage-->
Almost forgot, please use new version of the theme:
https://wordpress.org/themes/tiny-framework/
Is tiny-framework the same theme as tiny-forge?
I mean that i want some of my posts on one page and some other posts on another page.
When I choose a static first page i can choose only one page for posts.
Tiny Framework is a new version of Tiny Forge, I advice using the new one.
Then you have to create two categories and assign posts to one of them and this way you will have to “containers” for posts.
Okay, but how do I place one category with posts on one page and the other category with post on another page?
You can add those categories to top menu:
https://codex.wordpress.org/Appearance_Menus_SubPanel
https://www.youtube.com/results?search_query=wordpress+create+menus
I would like to point that this question is not related to the theme, but to WordPress in general.