Thread:Project:Support desk/Two questions regarding edit forms

Here is my setup:

MediaWiki 	1.23.5 PHP 	5.5.17 (apache2handler) MySQL 	5.6.21

When a user wants to add a new section, there will be a textbox with label "subject/headline". Is there a way to change that label? I am already familiar with the relevant hooks (editpage class), but I wasn't able to find a way to change the label. I guess I'd also be interested in knowing how I can change the copyright warning at the bottom of the edit form. So the first question is as follows:

Is there some way, preferably via a hook, to change the labels and messages related to edit forms?

Now the second question/issue concerns passing some information to the edit form so that I can reuse it when processing the edit. With simple forms, you can have a hidden textbox and then use that to pass information. Is there any way to do that with edit forms? Basically I have some information about the user that I need to hold and keep hidden from the user and then I would need that information for the 'EditPage::attemptSave' hook. The second question is basically:

Is there a way to pass hidden information to the edit form and recover it after the edit has been submitted (via a hook)?

Thank you in advance