On the desktop app, I can filter my notebooks so that I can show the highlighting for a specific notebook. This is wonderful for showing or reviewing a particular coloring scheme. It works beautifully on Desktop.
As best I can tell, I do have have the ability to pick a notebook in which new highlighting can be "deposited into". So that is good.
However, what seems to be missing is the ability to select a notebook to be "rendered" while reading. This would be wonderful to showcase highlighting and links for a given breadcrumb trail when talking with someone and using your mobile device.
