Did someone break the community guidelines on your project? well then, you can ban them from it! heres how! first add the when flag clicked block then take the if else block then next to if add username=aarven or whatever then make it say a ban message such as sorry, but you have been banned from this project.. for the else let them carry on with the project.
people who are banned from this, just as a example: only @aarven/me