This topic introduces some CpExtra features that don't fit into categories covered by other help topics, but are not deep enough to have their own topic.
Replacing Variables in URL Strings
Within Captivate, whenever you use a Open URL or File action, you can write in a variable name surrounded by double dollar signs ($$). In the export, when that Open URL or File action is called, the variable placeholder will be replaced with the current value of that variable.
For example, if you have a variable named MyVar which equals MyValue. Then you create an Open URL or File action that points to this URL: www.infosemantics.com.au/$$MyVar$$.html
Then in the export, when you call that Open URL or File action, it will open the following URL: www.infosemantics.com.au/MyValue.html
This can be useful for persisting data from one module of a course to another using GET variables. Click here for more information on GET variables.