JavaScript Guidance for Storyline

Hello all -

Looking for some guidance in JavaScript writing for building a Storyline block to use in Rise.

The functionality I'm looking to create is to replace the Continue block that allows the learner to transition between lessons in Rise functionality with a Storyline block that uses a photo. If it is possible, I want to write the logic that allows for that bridge into the next lesson with the photo in place of the Continue button.

Any help or guidance would be oh so appreciated!