Add Page Break marker

Click the heading text, and choose Insert > Publish Markers > Apply Page Break Marker.

In the Page Break Marker dialog box, enter the topic title. The file name is automatically populated based on the title text that you enter.

For example, if you enter the topic title as FrameMaker Publish options, the file is named FrameMaker_Publish_options.htm.

However, you have the option to change the file name in the Filename text box.