Quick tutorial for making your buttons dynamic. The four levels are based on each other, so if You're newer to Scratch, start off with having a look at the first two buttons. If you have an idea, just post it down below in the comment section. If I find it ok, I'll add it to this main version. You can also suggest (if it's hard to tell) by remixing the project.
You can freely reuse the code seen here, just mention me in Your Notes and Credits section.