Customizing and removing of buttons

System Information
  • **Strapi Version3.4.x:

Hello guys, I hope everyone is well.

I want to remove the ‘Add new role’ buttons in the top right and in the bottom of the list. I thought I’d have to override strapi/packages/strapi-plugin-users-permissions at master · strapi/strapi · GitHub but I couldn’t figure it out after all. While I am at it I would like to know how to customize that kind of controls.

I was able to customize the LeftMenu by overriding admin/src/components/LeftMenu/LeftMenuFooter/Wrapper.js etc and I thought any customization would be easy after that but now I am stuck.

Any hints on how I can do this?