In order to adjust the settings, you'll first need to be on the Timeline screen. You can navigate there by either going to the main menu and selecting Insights and opening up the Timeline, or by selecting the top three dots in the top right corner of the Points screen.

When a behavior is recorded for multiple students (or multiple behaviors for one or more students), you usually see a student's name and "4 MORE" listed next to the student. Toggling Separate Rows to "on" places all of those students onto their own row in Timeline, and separates the rows if you need to download a Timeline CSV as well.