[Typo3] Layout 1, Layout 2, .... Layout n - Renaming question

["Jesús H."]

Hi list,

I have several type of Header layouts and I am wondering if it's 
possible to change the name of that labels on the dropdown menu to know 
at least a detail of what the layout is:

ie: Layout 1 - Normal Header
     Layout 2 - Graphical He.
etc...

As well, I want to know as well if the number of layouts can be 
increased or decreased.

Thanks in advance for your help as always!

Jesús H.