Yes to both of you.

First, please read through the WoW Quick Start guide, at the top of this forum. May even need to read it a few times.. there is a lot of info in there.

Specifically this section...
There are two ways of toggling Key Maps
  1. Hit the hotkey Shift+Alt+M
  2. or, if the icons as shown to the right are visible, click the "A,Z" button on the left to give it gray arrows. The icon is showing that, when enabled, this feature may translate a key into a different key than you pressed in different windows (which, as we are discussing, may make it difficult to enter your password or type in a chat window, etc)
Tip: While we have you looking at the icons, you might be wondering how to move them. The Quick Setup Wizard told you on the last page, but here it is again. Hit Ctrl+Shift+Alt+G to bring up the in-game ISBoxer Control Panel, and then the Click Bar can be dragged to wherever you like. After moving it, click Sync to put it in the same position on all windows, and click Save to save the position for the next time you launch the game.
Pressing CTRL+SHIFT+ALT+G will get you into the ISBoxer control Panel... (the above needs to be updated slightly, but its still accurate), I believe its the second tab at the top "Regions"

on the repeater reagion panel, choose from the frist drop down menu and choose "all others"
click ADD.
drag your newly made red highlighted bar to your spell bar area.
resize the red highlighted box to fit how big or small you want it... keep in mind, your mouse will broadcast EVERYWHERE the red and the blue title area is.
back to the menu panel, click on "SYNC"
press CTRL+SHIFT+ALT+G again.

done.

where ever you put that window, your mouse will now effectively display on all client windows.

The below thread is for healbot example, but you get the general idea.
http://www.dual-boxing.com/showthread.php?t=30511