It may be a little less elegant than the Scripting as mentioned above, but I think this can be accomplished with just text boxes and action groups – no complex variables or conditions necessarily needed.
– Just put the text you want to appear for each selection in its own text box (hidden) – which would be 18 boxes based on your attachments.
– Then create action groups that hide all the other text boxes and shows which ever one you want shown.
– Then your list is just a selection to call whichever action group is needed.
(that is, if I correctly understand what you’re trying to do)