Change Player Button Label only on Specific Slides in sl360
In a Multi-lesson course with a Main Menu slides, I'd like to have the Next button - only on the last slides of each lesson - read "Main Menu" rather than Next.
This article discusses player label changing, and seems to be the logical place to find directions for what I'm trying to do, but no info found: https://community.articulate.com/articles/articulate-storyline-360-user-guide-how-to-customize-the-text-labels
How can I do this in sl360? I would prefer to change the label over removing the Next button on those slides and inserting an on-slide Main Menu button.