How to insert richmedia code into body of article pages & other pages?

Hi there,

you can:

1. Use the Hook Element, you can see the available Hooks here:

https://docs.generatepress.com/article/hooks-visual-guide/

2. Between Widgets, you will need to add the codes as Widgets.

Anything inside your content has to be added either manually in the editor or use the Ad Inserter Plugin