enhancer and _edited filename

I see that in the 4.5 the overwrite avoidance is optional and that you can simply overwrite the original file with the enhanced file instead of appending _edited to the filename. What I'm wondering is, instead of simply turning off the overwrite avoidance, is there an option to change what is appended to the filename? For example, can you set an option so that a sequential number (such as _2) will be added to the filename instead of the word edited?
Thank You
Thank You