Thank u very much for the valuable advice. I am actually kind of new to Word. I spend most of the time writing Excel VBA Application. The "Table" and "Bookmark" method is unfamiliar to me. Do you have recommendations for book or tutorial about WORD APPLICATION? I am willing to learn new thing.

For this automation work, my code now is nearly 2000+ lines, I can not just redo it from scratch. But I would like to learn new things and come back to this code to modify it.