Questions about middleware in strapi v4

System Information
  • Strapi Version: 4.15
  • Operating System: Mac OS
  • Database: postgres
  • Node Version: v18.18.2
  • NPM Version: 10.2.1

I have a component like this below and I want to disable this plus button. But there seems to be no solution in strapi v4 docs. Anyone has a solution?