add text to anywhere in MS word document

Hi,

Do you guys have any idea regarding add-in express tool by using which we can add some functionality to the word application .

That is correct - you would have to place bookmarks in the Word document before you send text to it.

If you are starting from an empty Word document, i.e. no bookmarks, then I would still recommend recording a macro to "get positions" from within the Word document - then you will be able to write some code using the VBA as a guide. 

A good way of achieving this is to add bookmarks to your Word document then GoTo the book mark prior to inserting the text.

If you add a bookmark (Insert --> Bookmark) to your document, then record a Word macro and navigate to the bookmark via the Insert --> Bookmark menu, select the bookmark then click on the Goto button, you will end up with some code like this:

Selection.GoTo What:=wdGoToBookmark, Name:="BM_1"

It is possible to perform reasonably powerful operations using this approach - dynamic tables, etc. become a reality.

HTH