Hi there!
That is a good question!
For the time being such feature does not exist, but should anyone want to develop it or support it in other ways (such as fund raising) that would be great. Please do feel free to contact me through private message in either case.
By the way, I strongly suggest you going for the latest version of Feng as the one you are using is 3 to 4 years old and you are missing tooons of new things!
Best,
Francisco