Hi Trish! Here's how you can add a player tab to the top of your Articulate Presenter player to contain your "how to navigate" interaction. (A lot of people like to use a Labeled Graphic interaction for this, like Tracy Parish describes in this blog post.)
Once you've created and saved your interaction in Engage, you can insert your interaction as a tab in your Articulate Presenter course like this:
- In your PowerPoint file, click Engage Interaction on your Articulate menu.
- When the "Quizzes and Interactions" window pops up, choose Player Tabs from the left-hand side of the window.
- Then click Add Existing and find the Engage interaction you created.
Here's a tutorial that explains more: http://community.articulate.com/tutorials/products/adding-an-engage-interaction-to-your-course.aspx (scroll to the part that says "#2: Insert an Interaction as a Tab On Your Player."