I really suggest to do some of the learning paths. They explain a lot
Is the default Account Management not accessible on a new app by default? But based on your question, I really would suggest to take a look on the Academy area for some intersting learning paths.
Project <your project name> Module > Navigation
At your console you see the different navigation pages probably only home right now,
name > fill in the name
onclick action > show a page
Page > probably administration overview
run it and test it