One of the major benefits of using ISBoxer is that you DON'T need multiple config files or wow install directories. You can play solo/raid by just launching WoW using the regular launcher, and you can multibox by launching IS / ISboxer and using a shortcut within that for launching your boxing team. You don't need to redo anything within WoW itself to multibox, as you can configure everything inside ISBoxer. In other words, you can setup boxing specific macros and keybinds that exist ONLY in ISboxer and not worry about them interfering with solo/raid play when you play without ISboxer. Let me know if this doesn't make sense and I can explain in more detail.