This would work the same way that comments work on a word document. Highlight a passage and write in notes visible only to the local user, which can be hidden or shown using a button or right-click option. Passages could be highlighted in a variety of colors as well, for ease of reference.
Public Mod Note
(GPyromania):
Moved from Bugs & Support to D&D Beyond Feedback.
This would work the same way that comments work on a word document. Highlight a passage and write in notes visible only to the local user, which can be hidden or shown using a button or right-click option. Passages could be highlighted in a variety of colors as well, for ease of reference.
Really wish this was a thing. I use these books on a Chrome tablet as my primary DMing sourcebooks.