You can right-click the editor tab, and choose New Editor. This opens a second window to the same file. You can then tile them however you want.
Go to Window > Preferences > HTML > Editors. Click the Advanced tab and check Enable word wrap. Restart CF Builder. Unfortunately it does not appear currently possible to toggle wordwrap in any other way? But I did see a developer drop a hint they would try to make wordwrap easier.
In order to see 2 files tiled at the same time within ColdFusion Builder 2, follow the steps below:
1- Open the file
2- Right click the tab with the file name
3- Choose Move Editor
4- You will see the file outlined in black in the interface, it is now attached to your cursor
5- Click to the right of the Source tab in the open area
6- This will allow you to view both files at the same time, one above the other
7- The file you select will be the active file
8- You can still use the Source and browser tabs, they will reflect whatever file is the active one