I've messed around with this a little. Converting to OCR while scanning slows down my scannig person. Then the lab data is not usually formated to copy easily to the encounter section. For lab data that I need to discuss in the note, I find myself handwriting or memorizing it off the Imported Items screen, then typing in the Enounter screen. This method kind of sucks either way.
I can think of a lot of easier ways to do this. For example, if anyone uses Roboform, it has a suitcase icon next to alot of the data and clicking that copies it to the clipboard. Displaying formatted HL7 lab data at the same time you are entering the encounter could let you copy items easily to the text.