Hello, so far I only have found that I can move my view by moving my mouse to the edge of the screen (when I turn that on in the settings), and using WASD.
I would personally find it much more comfortable if I could click a mouse button to either "grab" the view or go into "pan" mode. I have found this method implemented in many other top-down games.
As a new player, I find that I am constantly adjusting my view in order to check my surroundings.
The requirement to move my mouse to the edge of the screen (and two edges if I want to go diagonal) adds a lot of mousework. I could raise my sensitivity, but then I lose precision...
The WASD keys require a full "at attention" two handed computer position, while I could get away with only using one hand for a lot of the time otherwise.
Some people might think I'm blowing this out of proportion, but I think I have a good argument for providing this option.
Additionally, I suffer from upper extremity limitations (and I'm sure many of us are getting older), and little things that make life easier go a long way in improving my ability to play.