Using AoE spells?

First let me thank you all in advance for any help/insight you may be able to provide. I've learned a lot from this forum and its contributors.

I've just started multi-boxing and am trying to decide on a couple of classes I will be using. I've thought about using two mages for their high damage and cc abilities, but I am unsure about something. In regards to their AoE damage spell Blizzard (or any other class that has an AoE where you designate the spell to land), is it possible for both characters to designate the same spot to aoe or will I have to manually do it in each window?

I'm using Keyclone and right now the way I have it set up, the mouse follows the window that is focused. If I were to disable it, would the mouse be mirrored in the slave character's window?

Thanks again for all of your help

(I used the search capability to try and find my answer but was unsuccessful. If there is a post already detailing this, I appologize in advance and could you point me in the right direction)

no it will not be.
it only means that you dont have to click on a window to "activate" that window. there will still be one cursor.

check this
How to use Targetable AoE's multiboxing with in game macro's (no addons or programs needed)!

I use it for my 3 DK's death and decay spells

just do this on your classes that aoe

Thanks for the replies :)

I'll have to try what that post suggests when I get home.