Can I Auto format the first paragraph on every page of a 20 page document?

Question

So I have a document that is basically just a numbered list of 200 entries.
There are 10 entries per page, making it a 20 page document.
Unfortunately, every so often I am given an additional entry to add, which invariaby is to the middle of the document, and not the end.
What I'd like to do is if I were to add a new #20 to the document, the old #20 (now #21), being pushed to the next page, would then automatically be formatted using my "StyleA" paragraph style.
I haven't been able to discover how to do this, which means, in the above example, I need to go to 18 pages and remove the "StyleA" paragraph formatting as in each case following the addition, it is now the second entry on the page. At the same time, I have to apply the "StyleA" paragraph formatting to each first entry of all subsequent pages. If I only had to do this once in a while, it wouldn't be an issue, but as this document is updated regularily, it is getting tedious.
Nested styles doesn't seem to be an option, since i'm using Numbering which requires a paragraph break to differentiate between each line number, and nested styles seem to apply to every paragraph, unless i'm doing something wrong there.
I hope this is enough to go on.
Kraeg

Answer 1

You are saying that the formatting is different for every 20th paragraph, reagardless of its content, and that it is aways going to be the first paragraph on a page?
As long as you never deviate from the 20 paragraph cycle this is actually fairly easy to do, you jsut need 20 paragraph styles, 19 of which are based on each other and differ only in the style name. You then set the "next style" attribute to rotate through the list of styles, so the next style for #20 is #1 and the sequence starts over. Now just select the entire block of text from the point where you edited to the end and right-click on the style name for the irst paragraph in the selection, then from the context menu choose Apply <stylename> And Next Style.