Do I get you right - you suggest to have the (advanced) filter available only in a pop-up and not directly on the screen? If that is so, I would disagree, because the filters need to be combined with the resulting-list. Users would not want to switch windows, open a drop-down or something similar to narrow down the results. Or do I get you wrong? Perhaps you can modify the suggestion from Thasmo a little to visualize your suggestion?
Yes, you got me right, but it was only a quick thought. You're right. It would be a bit cumbersome for the users.
What do the others think? Use browsertabs for different Tine 2.0 states or use tabs inside Tine 2.0 that hold different states?
I still prefer tabs inside Tine 2.0.
But nelius proposal to give the user the possibility to choose if he wants to open a new browser tab by pressing CTRL+click or open a new Tine 2.0 tab by simply clicking would be the optimal solution.