How to force user to click on a Button in Rise 360

Aaron, 

I think I found a workaround for our situation:

1. Create a labeled graphic block, but have the image be a thin solid color that matches your background color.
2. Delete all the markers.
3. Add a continue button with the "complete block directly above" completion type.

This seems to make the interactive block un-completable which prevents a user from moving forward in a linear fashion. This forces the user to select one of the branch choices from the button stack.