Question: according to Hanafee fiqh is one allowed to move forward to a gap in a row ahead (while in salat)?
Answer: If it does not involved passing in front of anyone and one only moves consecutively one row at a time.
... and Allah knows best.
This weblog answers questions in fiqh based on the reliable answers of the salaf's 4 great schools of Islamic rules and laws, but emphasizes the Hanafi school.