So i could keep all those spammy hit messages and special effects in the main combat windows and put skills/spells to another windows/multiple windowes.

Hmm, this might require some work from the poor individual that gets the job, but I'd presume adding different combat_skill combat_spell "channels" would not be an impossible feat. As long as by default they'd get to go into the battle-window.

As of right now they require some manual mudside work to get to go into the battle-window.