You can selectively disable splitting to keep content together, such as at the start of a FrameMaker file, or when a single heading would be the only content.
§18.2.2.1 Preventing splits that create unwanted files
§18.2.2.2 Preventing splits that leave dangling headings
§18.2.2.3 Keeping headings together when other content intervenes
§18.2.2.4 Specifying split points for multiple-paragraph headings
removes the unwanted empty files from the wrap directory and If the first split is not at the first paragraph in a FrameMaker file, see §18.2.2.1 Preventing splits that create unwanted files.