maybe it is very easy but i am new on CMSMS. and i do not want to give up CMSMS, because i like it.
i need a main category and page of that category to show content summaries published under that category. i do not know if i explained well

i created a Section Header. i created some contents under that. but you can not click on it. i can create simple content and show in a page only 1 content. how can i show more ?
even on main page. do i need to create content blocks to show more items ? why i can not create a main page with some contents in ?
i am pretty sure it is very easy, maybe i am just confused. or could not understand main structure.
thank you for your help.