How do I create my own macro with this addon?

Trying to find videos but i can’t find any to help me out. I need some help. I have a disability a learning one for that matter and i’m visually impaired so would be cool to get some help on figuring out what to do.

Its basic macro creation from base WoW. Its just optimizing it to a rotation for said class. You can look into others macros to see how its done.