v1.9 did make some changes in that area, but the deep cache button was
supposed to work as before (the v button, fwiw it's meant to be downward
arrow and not the letter v). I will double check. Thanks for pointing it out.
You can still get to the cached item by pressing the Menu > Open link
button (the one that would usually open the item in browser). If the
item is deepcached then this button will open it in RS and not the
external browser.
HTH.
Jayesh