Prevent page deletion in panel

I have the following code on my site.yml:

mainPages:
  headline: Main Pages
  type: pages
  status: listed, unlisted
  create: false

I now want to also prevent deletion of pages via the panel. I have tried delete: false but that doesn’t work, Delete still appears in the dropdown. Is there a way of doing this?

You should set it from the page blueprint file, not the sections.

Just the ticket, thank you