Video chapters are placed in a sequence, but this doesn't have to be the way you watch them.
As part of a player experience, you may choose to let the viewer decide which video to go to, once one has completed playing. This creates a scenario which we call 'Choose Your Own Adventure'.
There may be a concern about how many of these video chapters you can use when you want to build a 'Choose your own adventure' style event for a player.
There is no limitation for the number of videos, although you need to be careful about how they will be displayed. Having a larger number will result in more scrolling on smaller devices, so ensure that the thumbnail widths are modified appropriately.