Beaver Builder
To modify a page built with Beaver Builder:
Go to “Pages”
Hover over the name of the page to edit and choose “Duplicate This”.

This will create a copy of the page.
Hover over the name of the NEW/COPY page to edit and choose “Beaver Builder”.
This will open the page in builder view. Hover over the section you want to edit- a tab with options will appear at the top left of the section with icons for: Move, Duplicate, Edit, Edit Column, and Delete.
If you choose edit, a window will appear with all the options for changing the content.