How do I make Running Headers pick up headline from previous page rather than present page?

[FrameMaker-dk]

I am typesetting a law book and I have small challenge. The publishers want the running header to display the header from the previous page rather than the header from the present page. I have made an illustration hoping to clarify my cumbersome explanation:

[Winfried Reng]

Hi,

I think this is difficult. The regular system variable for running headers and footers checks, if a specific paragraph is on the same page and lists its paragraph text. With + you can tell it to list the last occurrence on a page rather than the first.

<$paratext[heading]>

<$paratext[+,heading]>

However, with the default behaviour you cannot get the paragraph on a previous page, when there is the same paragraph format on the page with the variable.

I had thought of a solution where I would create separate paragraph formats for each heading, so that FM should prefer the paragraph from the previous page.

However, this does not work. Pitty.

I am sorry. No solution.

[frameexpert]

This probably requires a scripting solution using <$marker1> or <$marker2> markers and corresponding Running Header/Footer variables.

[Bob_Niland]

I'd be tempted to try putting a hidden clone ¶style of Section E at the start and end of Section E and have the RHF pick that up. The second instance would be an Xref, so that it picks up any changes to the lead instance.

I have done something similar for a project where the RHF text needed to be a condensed version of the full header text. I do this as Anchored Frames with Text Frames, attached to the heading, or in the margins, rotated as needed to fit, text of a named color set to invisible in Color Views (switched on for authoring mode).