Support is given in an external forum. If you have questions or requests, or perhaps have found a bug in the GUI, you can post it there.
Please note that I can only give support for the GUI and NOT for the used converters. Since this is a private project, my time is unfortunately limited as well as the available support.
If you want to support the development and know for example some commandline parameters or tools (free, with commandline support) for a better or faster result, feel free to post your findings!
I am always open to suggestions!