Thank you Paul and eNGiNe for the reply.

That’s what I wanted to know Paul. No built-in function that can do this sort of work. The macro is the only solution to manage this issue in a very INTEGRATED way.

I expect it to be very tedious kind of thing! But this function might be needed frequently by so many users! We are all using abbreviation in this workflow and sense.

The macro is supposed:

1. To derive the abbreviation automatically and written next to the term between brackets

2. To replace the full term with its abbreviation automatically if it appears anywhere in the document. The first time the term appears must NOT be replaced.

Best

Jamal