[TYPO3-mvc] HowTo add hidden records

[Mario Beiser]

Hi there,

is there any existing example on how to create hidden records?

For sure I can manage it with a post value but what I need is 
to overwrite the original add-message or create my own in a correct way.

So I can't find something in the docs flying around in the net, so 
perhaps some one of you created already a own add message and want's to 
share this as an example.

Just to see, what is possible.

Thanks in advance.
Mario