refining samples in trim mode

Hey guys, this is a pretty basic question but I'm having trouble figuring it out. I just got the JJ OS, and I'm trying to adjust to it. But one of the problems I'm having is I can't figure out how to refine to start and end points of a sample (I know you turn the wheel, but I'm talking really fine tune). With the AKAI OS you just hold down shift and use the left and right arrow buttons, but it doesn't work with the JJ OS. I read somewhere in the manual for the JJ OS that you can press the "numeric" button, but it's not working. Any help would be greatly appreciated, thanks.

Zoom in on the waveform (I dont remember how it was done in JJ OS1, so get stan´s manual)

yea just use the zoom in and move the cursur over the start time. Press the up button to blow the wave up bigger to get a better look.

this works in os2 - not booted one in a while ...

press window and you go to a view where you're right in on the start and end and you can see how it joins - zoom in and out is on the f keys