This has been suggested many times, it is currently being considered by the author.
However at the moment we are in a feature lock, until 2.0 is completed.  After this is completed, im sure this feature will be worked on.
The current thread is in the suggestions section, 
http://forum.flashfxp.com/showthread...&threadid=1168
I have locked this thread, you can add to the other if you wish.