How to record

Guys i have a problem with Crossfire,or it's me
when i go to replay ,and the replay starts,i can't use the left-right button, the buttons you forward the video of backward.... i want to record the kill from multiple angles... without restarting the replay.
Help ^__^

i dunno this as well cuz if u want to see sumthing in the end of game u need to wait, wait and wait