Thanks a lot, Michael.
I'm working on another way of doing it...I've got to collect ALL of my thoughts on this one. Here's the situation:
We have a contractor who's adding all of these blocks for vent locations on our site plan (it's not a real precise location) and the block is basically just a dot with a label. What he's doing after he inserts all of the blocks, he uses the ol' ATTEXT command to get the Label, and the X & Y co-ordinates. He then brings that into Excel and fills out all of the other info (11 additional fields). I want to have all of that info in the block (for another reason), so what I think will be the best solution will be to wait until he has finished placing all of the blocks and populating his spreadsheet. Then, I will add the new attributes (invisible) to the block and redefine it in the drawing and using the new ATTOUT and ATTIN Express Tools commands, fill in the rest of the info in each block.
I think I said that right...although I'm not sure if it's the best idea yet or not. We'll see. Thanks again, Michael.