I often have to fill in for other players and have 2 or 3 character sheets at a time. I NEVER remember to change my chat handle before I use their character sheet. I wonder why it doesn't just use the character sheet as the Chat As name when I click on a spell or attack, or what have you. This seems like a simple change and it would be VERY beneficial as I wouldn't have to tell my DM that I used the wrong handle on that attack, or spell. The way it is now it makes it hard to go back through the chat window to clarify any disputed turns too.