When a user visits the homepage of our site I'd like to display a message, but only display it if they haven't viewed a particular (other) node yet. I can't find any data selector in the Rules module that allows me to specify the values from any node other than the current node. How should I do this?
In other words, I'd like to create a rule that evaluates the value in a particular node (one that can be directly identified like node/100) in its conditions. I can't seem to figure it out.
I'm using Drupal 7, and Rules 7.x-2.7