How to move camera with mouse, without pressing right mouse button?

@DarkGrumpyFox;  As you already noted in the DAI thread, "No."   The game is almost 10 years old and the way it works is the way it works.  As a side note, I like being able to move in one direction whilst looking in a completely different one, so I prefer the way DAO/DA2 handles this over the way DAI does (Eclipse/Aurora vs. Frostbite engine.)