Raw Image Plugin - Switch from Preview to Full?

The RAW image plugin default setting of Preview (fast) if available makes sense. When I open a folder with RAW images (in my case these are .NEF files) the thumbnails appear immediately and when I double click a thumbnail the selected image appears instantly in the viewer, at preview/thumbnail size. Is there a way, from this preview, of forcing to full size for that image?

Regards, AB

Not at the moment but it's something I'm thinking about for the next version.