Quote Originally Posted by katank
Mow em down mode brings to my mind the picture of a group of knights with lances down all the time, whirling across the entire battlefield mowing everyone down.

I have a feeling that this is what OP wants. Feels way too arcadey for me.
Well, it could be a switch to secondary weapon; swords or whatever. Maybe even just plain 'ol horse trampling against unarmored units. It would be a mode that would only kick in against routers, so it couldn't be exploited in normal combat.

If CA or the modders can't figure out how to do something like that, then I don't see how chasing routers with cavalry (at least charge-based cav) can ever be fixed. The single and double click commands are designed to be used against units that are fighting back. When units flee, the pursuing cav wastes way too much time trying to re-form for a coordinated charge, which isn't necessary against men in panic with their backs turned. They just need to... mow 'em down. But maybe CA sees this differently, or maybe it's just too hard to program a separate attack routine for chasing routers.