With Ctrl + Shift + Scroll wheel or Ctrl + Scroll wheel dragging the drawing area can be rotated and viewed from different angles. In the bottom right corner of the window, the viewing angle can be entered manually. Right-click to select between a set of preset values. You can also reset canvas rotation in
View → Canvas orientation → Reset Rotation. Keyboard shortcuts for clockwise/counter-clockwise/no rotation can be set in the preferences.