I want to write notes and comments while reading each book and article on a research topic. In each of the notes files, I will want to highlight 4 or 5 passages relevant to a sub-topic. For example, on reading a book about Politics in Pakistan, I may want to highlight a paragraph of three or four sentences which relate to the sub-topic 'Bhutto's Education'. (I might label that sub-topic BHUTED if a short keyword is preferable.) But my of notes also contains several other passages on different sub-topics - eg Pakistani Elections, Nuclear Weapons, etc. Each of these need to be highlighted, tagged in some way, for future recall. And there will be further instances of 'Bhutto's Education' scattered through my notes on other books and articles which I have studied. How can I recall all the passages of notes tagged 'Bhutto's Education' into one new file, with the bibliographic information given for each of the different passages. In other words I don't want a list of all the files in which 'Bhutto's Education' is referenced, but a new, single file which shows the relevant passages and the file in which they first appear.
