As with Key-Value Pair substitution, you can reference a data source. To do this, you need to provide the data source name, the table name and the field in the table. Drop downs make this simple in parts of the system, but at times you might have to type something like this:
[[ds:/Stars/actor/name]] appeared first in the film "[[ds:/Stars/actor/debut]]".
which could produce this result
Dustin Hoffman appeared first in the film "The Tiger Makes Out".
Data Source in HTML
Data Source can be used directly in an HTML Block:
if your variable contains a text: <h1> [[ds:/Stars/actor/name]] </h1> if your variable contains a URL: <a href="[[ds:/Stars/actor/name_URL]]">Text</a> If your variable contains an image link: <img src="[[ds:/Stars/actor/name_URL