Okay, I see what you mean.
However, it still did not work. It does not look like I can upload a screenshot so I will need to describe the latest:
1. I activated custom fields and created one named CODE1, and for the value of CODE1 I pasted the custom html/imbedded javascript code. Then saved the custom field.
2. Added a HTML block on the page and inside it I pasted {{CODE1}}. (In the plugin settings it is set up to use {{ }} as the identifiers)
When I update and view the page I don’t see anything.
Is there something I am still not doing right?