Not sure what you're asking. If you're using file properties from a part file to populate your title block, you're kind of limited to what you can do. If you take some time and create custom properties in your template part file with the properties manager, you can then populate your title blocks with special callouts of anything you want.
no, I believe that what @Somnath_Pore is asking for is a very old issue.
You can define certain user informations from within options dialog.
One of them is the user initials.
The sad story is, that all those over 20 years using SE, where this info field was available, I never ever have seen any way/method to get it out with on board functions.
So again this is a very good idea, over 20 years old, but nobody has gone this way to a lucky end.