Stonly guides are built out of steps.
When you allow users to choose from multiple next step options, you're creating a branching guide. Branches can stay separate (e.g. iOS and Android instructions), merge back together (e.g. in a tutorial with beginner and advanced instructions), and be as long or short as you'd like.
You can manage each step's choices in the Next steps block in the guide editor.
The options include:
Adding, ordering, and deleting choices.
Changing the look of choice buttons.
Switching between scrolling and click-through navigation.