[TYPO3-core] RFC: #10947: It's not possible to add buttons to docheader

[Steffen Kamper]

Hi Masi,
> 
> I don't get it. I can simply extend the class without doing any
> XCLASSing in my modules. Why would I need a hook ar an XCLASS to do it?
> 
> Masi

that's right if you do a BE-module.

The hook is needed for other extensions like adding functionality to 
existing modules like  tceforms/edit or listview etc.

vg Steffen