It would be useful to have another visibility condition or element property to have some elements, buttons, or debug features only present in a development environment. This would allow us to add in debugging or shortcut features without having the risk of accidentally leaving them in a published build, or accessible in a published build.
Now, you could add a “development” role and have visibility set to that role, but then administrators have the potential to give users access to development-only features. This also adds an extra Module Role that you’d need to manage in every module.