Movement range on campaign map

[GeWee]

I'm having trouble coping with the ingame fact that it takes several years to march from Denmark to Sweden..
How do I go about doubling the movement range per turn for all units and what would be the downside of this?

[Lusted]

You can't atm, but i can tell you the downside of it, given what i experienced modding this in RTw. Be prepared for no field battles, as the ai will just move straight to your cities because of its increased movement distance.