Reference markers in Sample Editor


I am a relative newbie to Cubase but and rapidly getting up to speed with the software through the use of the manual and youtube in the main!

I am trying to use Audiowarp to correct the timing of a guitar track that I need to overlay onto some music. I would like to use free warp tool in the Audiowarp suite. The problem that I am having is that I have no point of reference with the rest of the project when I open up the sample editor window. Is there a way of overlaying one of the over tracks or hitpoints from another event so I have a visual reference of where I need to align my warp markers to?

Note - I have played with quantize and groove creation (with limited success) but would rather use Audiowarp in free mode.

Many thanks in advance