It is many years since I used my computer to print sheets of labels as I invested in a Dymo label printer and then came click & send and now ebay print label

From memory I always used the print label option in Word or Works, you need to have the names and addresses in a database.

You don't need a P command (unless your bladder is full LOL), if you are using windows then ctrl + P  will always print regardless of what printer you are using.