Use right mouse for regular move.
The Move-Order is the most used and probably also the most versatile command.
You can combine move with various keyboard-keys or drag a line or queue up commands while holding down SHIFT very easily.
Simple Right Mouse click. Move (hotkey: M) instructs units to travel to a waypoint. For factories, this sets a waypoint for units it constructs. Right-click on the map to give a move command to your selected units.