How to change campaign unit speed?

[_Tristan_]

You can hit "space" to speed up the movement of a single unit and revert to slow speed by hitting "space" once more.

[Khan]

Or right click when in motion for a one off boost.

[vorius]

Ok so space bar does pretty much the same thing I have been doing with mouse clicks? As in it only affects the current unit's movement but then the next unit is back to the turtle pace? There is no global way to set this? Is it possible some easily modifiable value in a text file that can change this?

[_Tristan_]

In fact "space" does speed up all AI moves so be wary of its use if you'd like to see some factions' move particularly... It is a toggle on/off kind of thing