I need to delete one or a couple of songs from the list.

I need to delete one or a couple of songs from the soundconverter list. SoundConverter doesn't allow me to delete only one (or a couple of) song from the list of songs to be converted. I always have to clean all the list and add all the songs I want to convert, again. If I add a wrong song in a list with a lot of existing songs, all the work must be thown away and I have to start to add songs all over again.