NullDC Fast forward

Hey guys, I just started emulating DC games again, and I got the latest nulldc. I remember there being a fast forward button so I could speed up boring para of games (cutscenes dialogue scrolling etc). Now I can't find out what that button is and no web searches helped. Do you guys know what I'm talking about?

GBA was the only emulator I knew of that did that. I remember nullDC being the fastest emulator so you could do this by adding a feature to stop v-sync but not to my knowledge. I'll bum around on that net a bit and comment if I see anything.