i really want to know.

hey, this is beginner sanctuary. i'm posting noob questions :P

You dont,bassically if you mean frames too no. (thats what i really think...)

You can press , and . while playing the replay and it should slow down and speed up.

Nothing happens when i do that,any help?

Seems like the newest version made have a bug or something. It would work normally though, try again in a week or something.