Applying Tiggers to multiple text boxes

I have a interesting situation: 

I need to have multiple text boxes in the story, sequentially throughout the timeline.  I need these to be visible based off a button.  The problem with layering the text boxes on to the file is that the timeline for the layer starts once the layer has been applied, and does not keep the same pace as the baselayer timeline.  I need the timeline of these text boxes to be the same as the baselayer timeline and for the user to be able to chose if they wish to view the text boxes.  Is there a method allowing the user to choose if they see the textboxes or not without having to individually trigger each text box?  

Thanks!