Query Categories
To query the posts from specific categories:
- Go to Pages > Add New
- Select a category from the "Query Category" dropdown or enter a comma-separated number list (category IDs) in the box
- Section categories = display the multiple categories separately
- Display = choose to display whether: excerpt, full content or none
- Posts per page = number of posts to display in one page
- Page Navigation = page navigation (page 1, 2, 3, 4...) will show by default if there is more one page

General Post Terminology
The image below illustrates the general terminology for post structures:
