Navigating between scenes

[old token]

I want to know if what I'm doing is right.
Or is there a better way to do that?
For example if you want to add a back button , do i have to do this on all the scenes?

[crude folio]

Usually you'd want to do this in a modular way
Have a function that goes through all elements (I guess they are levels)
And create a button via code for each of them

This way the code is much shorter and whenever you add a new level the list updates automatically