Suppose I highlight and annotate text in a pdf. I want a summary of all my highlights (not my handwritten annotations), how can I do that. Once I can do that, and maybe the optionality for adding my handwritten annotations can be added as well, then this 'page' becomes my 'cover sheet' for the pdf. At a later date, I only need to refer to this sheet and if I need more clarity I can go to the underlying pdf which in any case is attached to the 'cover sheet'. This is a feature that is available in the 'free' version of the Highlights app - screenshot attached.