Is it possible? Certainly. Is it worth the effort? That's up to you.

A simple solution would be to have one document with both versions in it, restarting page numbering at the beginning of the second version. Use some method to repeat the common language. There are some where a change in one part will change all.
Which method is best may depend on the extent of the common language and whether you can use macros in your environment.



Read this (all of it) and write back with questions: Repeating Data (Populating Multiple Like Fields)

I do not know if it is possible, that's why I ask.

I already searched solutions on Google, but found nothing. I think that I don't know what keywords search for. For example, looking for variations of "different versions" return useless pages.

So, it would be useful if somebody just gives me more effective search terms.

I guess that what I'm looking for is already implemented in Word, or can be done using some feature, like corrections for workgroups (about which I don't even know where to start), or working with listings (I know that is possible, for example, to write a mail letter and print one for each person on a list, and I don't know how to do that ¿maybe fields?).


My boss asked me to keep different versions of the same document (80% of it should have common text shared between documents), and I can see that it would be a maintenance hell to edit each one and copy pasting the common sections.
So, I believe that is worth the effort, because I foresee that, maintenance complexity will explode exponentially.

I can use macros, and I have experience writing macros in VBA and also VB.NET.