How do I make the Forward function in the prototype?

I have a question about prototyping. In prototyping, there is a BACK function but no FORWARD function. What to do if you need the FORWARD function, for example when you click to go to the next step. Is it always necessary to set it manually even if there are 100 slides in the prototype?

If you don’t have any prototype connections, you don’t need to make them as the prototype will play as a presentation with back/forward actions used automatically. But if you create at least one prototype connection, your prototype is no longer a presentation therefore you need to create all connections manually.

I mean this function. I can back up automatically, but not forward.