Custom message instead of blocked content

I am just copying the suggestion made by @lickthetoad here so there is a new ticket for it:

Can be nice if is possible to replace hidden iframe and other area generated by blocked script with a custom message that indicate the content in the area can be view only if the cookie are enabled.

+1 Would be great if that was possible. I really like the way Adafruit has implemented it where there is a message and a button to enable the plugin if needed.
See for example this post.
The Youtube video below the image is not visible by default if you have Do Not Track enabled in your browser.

p.s. I really like the plugin, I’ve tried many, it is really hard to find a free one that has the needed features. You would probably help a lot of interested new users if more support topics are in English (not criticizing, it saves non Italians the use of Google Translate). ??