Hiding Inherited Button

Kevin Elmore wrote:

What are these variables? I would assign each variable to the object you want to show. Their initial values are 0. For each object, I would assign an action: On Show, Modify Variable: varA Set to 1. I would assign another action to the object: On Show, Run Action Group: Show Next. This is easy to copy and paste to each object. Just how do you do this in Lectora? I have 5 links to 5 pictures. I want the Next button to appear after all 5 have been clicked. Thanks in advance.