Concordance of Topics to be generated for a 2000000+ word document.

[MJSTOCKY]

Being brief – (I am a novice in application software):


Does anyone know if Microsoft Word(or any other application program)can take this enormous document and enable the construction of an'on the fly'“Concordance of Topics”in the following manner.The author reads through the document and manually inserts'on the fly'perhaps a new 'topic phrase'as required(in a pop-up box),and at the same time the program automatically adds a hidden reference link within the document text(linking the existing,or newtopic/phrase[created on the fly]from a pop-up menu).The new topics should automatically alphabetically realign in The Search Topics(as originally generated in the pup-up box).“The Search Topics”could number in the many thousands and several different topics could cross link to the same places within the main document.The established links should remain even when the original document is modified by insertion of new information between established index pointers(obviously over-written links would need to be later remade).
A recipient to this document would look through The Search Topics and select the one of interest and would be allowed to step through all the original inserted references(as created by The Author) within The Main Document.Obviously other functionality would be useful,for example the recipient could manually click the displayed references(under any specifically selected topic/phrase)and these stored references appended together to form a printed document later.Many other useful functions could be described.
This is a data base having floating index pointers manually inserted within,in the most easy and transparent manner possible for the author(being such a large document with many thousands of repeated topic entries cross linked),–and to be making searching'on the fly'easy for the recipient.Is there anything like this? Thank you in advance for your help.