QR Code with pauses after <Enter> codes

I have a customer that wants to use QR codes for data entry. The data will include several embedded <Enter> codes. The program will require a delay(pause) to be present after every <enter> for valid data entry. I've studied ADF for the Zebra DS4308 and I'm not sure how to program this since the data length can vary greatly. If the data was a constant length then ADF programming would be straight forward.

Any idea how this could be programmed in ADF?