You can bulk edit categories or/and tags in WordPress, saving you lots of time when you migrate post content.
How to view more than 20 items per page in WordPress?
Open the “Screen Options” panel in the top right corner and edit the Pagination value. Press apply.
How to bulk categories and tags in WordPress?
After increasing your pagination, click the checkbox to select all post, then in the dropdown Bulk action select “Edit” and click Apply
This can be useful if you need to change tags/categories (for displaying dynamic content in feeds on different pages for instance) after a content migration.
Hope this short article helps.