I think the text in red is no longer true.[Help - Dialog box: Synchronize directories] wrote: 1. Choose the two directories you want to compare, and (if necessary) the file types (wildcards), using the middle combobox. See Select Files how to include/exclude files by wildcards. Predefined filters aren't supported at this time.
Same for the German Help. And in the German help there is no empty line above point 1.