advanced event edits?

Probably it's just me that i don't search well enough among the threads, but there's also something i wanna ask that quite hardly is included in the event edit guides:

1) Easy one... While editing events, you have a set of commands... Do you use them both for battle events and map events, or you must use different commands?

2) Here's the nasty question : Ok, i'd like to set an event or an event triggered animation that continues to be active, like a loop animation that keeps to be active, while the battle goes...

Here's an example: Kefka casts the event animation of the blizzard fist, it doesn't do nothing in particular, it just use that animation, but it won't end after few seconds, it will last until the end of the battle, while the battle continues... after that Terra will attack, Kefka will counter it, Locke will cast cure 3 on the party, and so on... all that, while the blizzard fist animation is still active.

Sounds improbable, but i saw this command:
3A : 1 : Enable movement while events execute
So i thought it could be possible, or maybe there's another way too, i don't know...

PS. the shake screen event, before Kefka casts Goner, is active while the battle continues too.