The specification you give suggests the book is structured into different parts with their own layout.
In Writer, when you meet such context, think of page styles. A page style defines the layout for book parts. In your case, you have 3 parts:
- cover letter
- first story page
- rest of story pages
I assume that cover contents is rather short and won’t need more than one page. Consequently, I’ll use the automatic switching of page styles.
Create a new page style for your story first page with name Story First. Cover will use built-in First Page and story Default Page Style. Customise these page styles as follows:
-
First Page: change Next in
Organizer
tab to Story First; make sure there is no header nor footer
-
Story First: change Next to Default Page Style
I suggest you enable header and footer (but leaving them blank) so that this first page has the same layout as the rest without the need to compute adjustment for margins. This way, you set the margins to the same value as in the running story pages.
-
Default Page Style: enable header and footer
After the text in the cover, add a special page break with Insert
>More Breaks
>Manual Break
so that you can force page style to Story First and page number to 1.
Nothing special in the first story page (you leave header and footer blank).
In the second story page, you set the header as you like. Page number is insert with Insert
>Field
>Page Number
. By default, the header is styled Header paragraph style which already has tab stops set for center and right. To have the page number centered, just type Tab before inserting the page number field.