Is it possible to use Key input in battle ?

Is it possible to do that ? 

Sure is, you need to call a Common Event from your battle event in order to do so, however.

Umm ...
Can you give me a screenshot or sumthin' ? 

if you cant figure out common event you have problems
you cant screenshot common eventing then make sense of it
well atleast i cant.

Basically Create a Common event in the common event tab in the database. And using the troop Tabs create battle sequence that uses your event in the battle.

I hoped that helped a bit. Haven't even worked with Createing battle things yet.

You actually don't need a Common Event. In the troops tabs, there is space where you work. You can have many pages and have control of alot stuff here, for that one troop. It should work as if you had a Parallel Processing, if the Span is set to Battle (If I'm not mistaken). Where it would be helpful to use a common Event is if you are doing something that would be used OVER AND OVER. Then you'd make it in the Common Event and then call it in the Troop Tab. That way there is no copying and pasteing. Maybe if you tell us how you're using it, we could help you better. But it seems that we've covered just about everything.