Browsing RAW + JPEG photos

Hello everyone,
First post here! I have just downloaded FRV and I am quite impressed with the amount of functionality. 

However there's one thing I cannot figure out: I would like to browse my images seeing both RAW and JPEG (external) at the same time using the multi-window features. I know how to load those images, but then I would like for both windows to update as I navigate through the folder with the arrow keys. Is there a way to do this? 

Thanks!