put informative text in page edit

[adrianmak]

For some page only has title field, the page is just used for a page container. The content will be generated in code.

For example a site-map page, it will generate a site map of all pages in code.

I would like to , when a ordinary user edit the site-map page in admin backend, i like to show a block of text in the page edit, the text will say something like "this page is blank intentionally. The content will be generated by system"

[Macrura]

The latest version of Admin Help module allows you to add a field to any help doc called help_header, which is then prepended to the edit form, for the template that this is enabled for. I use this for exactly the purpose you describe here, as well as putting a lot of instructions at the top of the page edit for certain template/page types; does help a lot and cuts down on support calls..

Alternately you can achieve this with a custom hook/function in your ready.php, for example hook into ProcessPageEdit::buildForm, and then prepend some markup depending if the conditions are met