2 quick fixes on Replay System idea

Ok so I have 2 quick suggestions for the replays and I think this would be pretty easy for z8 games to put in/fix.
#1-Right under Delete, Delete All they should add a new button saying 'Rename' so you don't have to go to the 'my documents' and everything. Thats just an idea, but I think its useful
#2- If you guys haven't noticed there is a grenade glitch where if you keep like fast forwarding it and then going back it throws like the same grenade smoke again..This turns into a bomb war lol..maybe they could fix this.