Foxeous:
The /viewport command is explained by Cairenn here.
The only problem with the viewport command on a UI thats set up along the bottom is it will just "CUT" the world at the bottom and not change the perspective...
You have to use something in 4/3 ratio to get the viewport to change its perspective.. For example 1000x750 or 400x300 or 600x450.. There may be other ratios that work too but I have no knowledge of them yet.. Will fiddle with that later too..
What I suggest (and personally use) is using the UI_TabletsViewport_1024x768.ini with a viewport of 864x648(4/3 ratio)
Ingame type: /viewport 0 0 864 648
Shrink the chat windows down so they show 8 lines of chat.. And make all the main windows around viewport 100% solid..
I attached a
screenshot.
As a ranger, maybe replace the pet window with the 4x2 casting window..
Another suggestion.. Maybe set everything up on the top of the screen..
Hope that helped and wasn't too confusing!