After loading a study to Volume Matching:
Registration is available.
Scroll, Swivel, Roll, Cine, Zoom and Pan are synchronized between studies in all views.
Click Group Layouts 
to make a selection from a set of Display Options, such as VOLR and VOLR plus MPR 2x2.
Click Zoom 
, open the drop-down menu, and select Zoom Synch to control zoom synchronization.
Click Relate 
and then click on any interesting point of interest (POI) for pixel-level matching.