H4 Extension + H4 EAD Can we file it online?

Hello All, recently I came to know that we have option to file H4 Extension (I539) and H4 EAD (I765) online. Did anyone try online filing process ? Generally when we file for H4 and H4 EAD we file it together by mailing both forms together. If we decide to file online how these cases will be linked to each other ? Does filing online expedite the process ? Please share if anyone has experience about the same.