Activate next btn after Flash finished

I have a simulation that the user must complete in Flash before the Next button is activated in Lectora.I have tried:(1)Adding a Lectora action to my flash file that has either a next button appear or goes to the next page: On: Done Playing Action: Go To Target: Next Page Problem: Lectora is considering the flash file is done as soon as the file opens. It does not give the user time to complete the interactive. (2)I tried to keep the user on the page for XX seconds by not initially showing the next button. However, there would be no way to ensure they completed the simulation. Basically, I would like the next button to be hidden initially, and then when the user has completed the Flash-generated exercise, the next button would become visible for the user to click.Can any one please help me figure out how to make this happen?