In the LOTR trilogy, the party is fragmented at the end of the first book. Sam and Frodo are heading to Mordor. Merry and Pippin are captured. Legolas, Gimli, and Strider(Aragorn) are in pursuit.

Suppose that you were Tolkien writing in Scrivener.

Okay, Okay, I know that most of us are not nearly as good at being wordsmiths as Tolkien, but bear with me a moment.

Suppose that you wanted to focus on writing Frodo and Sam's story without changing the trilogy structure but without jumping back and forth to the other characters' stories while composing the text.

L&L has released a short video which explains how the Scrivenings mode works and how it can be used for this type of writing.