Browsing Stencil Library

My fading memory remembers older versions of Omnigraffle letting a user view the list of stencils while also looking at a specific stencil. However, with this latest version, it appears after a user selects a stencil from the list, the list is replaced with the specific stencils.

Is there a way to browse through list more quickly, something akin to a preview mode, to avoid going back and forth being the stencil list and the stencils themselves? I find it a pretty big nuisance to jump back and forth to a stencil name and the prev/next arrow buttons in the stencil library palette.