Yes I'm on BIS.
But if you open your bookmarks FROM the hotspot browser menu it uses the wifi connection. Browser > Hotsopt log in >menu> bookmarks.
If you use 'go to' from the hotspot log in bookmark you can then probably save the page as a bookmark under the wifi options but I do not want two of everything.
If you just go to browser icon then open bookmarks you are using the internet browser.
My way may be very long winded way but it works for me :D