1) Create a new Keymap under General and for example i called mine "Turn Left"
2) No hotkey needs to be set as this will be used using Do Mapped Key function.
3) 1 Step and 1 Action, Create a new Keystroke Action: Set target to Window: Current and your key combination to whatever your wow turn left key binding is.
4) Go to your FTL DPS mapped Keys and select DPS # - Change Execute a Step when hotkey is: Pressed and Released
5) Create a new Step and make this priority 1. (Right-Click and move up)
6) Within this Step create 1 new Action. New Do Mapped Key Action. Target - Window: All w/o Current Key Map - General Mapped Key: Turn Left
7) Step 2 should be your default dps key.
8) Export all to Innerspace and happy days
Hope this helps you casters that had this problem.