Hello,
Thank you for contacting Rank Math support today and bringing your concern to our attention.
We currently don’t have a bulk option to mark posts as pillar content in one go.
However, with the help of our PRO feature, you can export and import the CSV file where you can easily edit the post’s is_pillar_content
status. Please refer to this guide: https://rankmath.com/kb/editing-seo-meta-at-scale/#csv
Hope that helps and please do not hesitate to let us know if you need our assistance with anything else.
Hello,
Since we did not hear back from you for 15 days, we are assuming that you found the solution. We are closing this support ticket.
If you still need assistance or any other help, please feel free to open a new support ticket, and we will be more than happy to assist.
Thank you.