how to edit blendshape animation timings?

Hi, I have been doing some lip sync with blendshapes and keying all the blend attributes like a mad man.

Now I need to retime some of the frames but I cant find them they dont show in the time line and they only show in the graph editor for the selected geometry i.e teeth or tounge, but I just need to grab the whole pose made up of say fifteen seperate keys and slid it up in time.

is there a way?

cheers

Jim