When selecting a group of units (marines/marauders/medivacs) I'm looking for a quick way to load them. Right-clicking each medivac in turn works, but when multiple medivacs are used they tend to converge on the right clicked one. This makes if difficult to right click the subsequent ones if they all try to stack. It takes time waiting for them to move away from the previous loaded one before I can start to load the others. This is the quickest way to load but still painfully slow. Ideally what I'm looking for is to select lots of varying units and using a keyboard shortcut to load the land units into the also selected medivacs.