Thanks for the help but I should’ve provided more background information.
We’ve had an “interesting” interaction built for us in HTML5 that I’ve dropped into Lectora. The interaction changes the value of an Lectora custom variable when it’s been completed. A few things in the Lectora title are inactive until the interaction has been completed.
I don’t want the developer of the interaction to hardcode anything other than the name of the Lectora variable (so that I can reuse the interaction in other titles). So I’d like my Lectora title to know when the variable has been changed and to then trigger an action.