Video position

hi, i got a rookie question, how do i change position of the video, when its being played with filestream. position seems to be an output pin and it doesnt allow me to change time at all. thanks in advance…

enter a value (time) in the Seek Position pin and bang DoSeek
-> FileStream (DShow9)

remember also if you want to use relative position to the duration of the video ( 1/10eme of the length) that you will need a framedelay node