How to add unique html codes to unique dynamic pages within a html widget via the content manager? (No "coding" jargon please)

I would say —> Houston you’ve got a PROBLEM.

You can set the URL for HTML-components, but i can’t find anything what would allow to put into the component.

Please show 5-different of these embed-codes, so i can inspect and analyse them. Perhaps there can be a work-around…