I want to synchronize two folders.
But one subfolder with more files and more subfolders should not be synchronized.
I want a filter to excluded this subfolder with their files and subsubfolders..
At this point, you can click the Synchronize button to begin the synchronization. If however you want to check the file list first to see exactly what's going to happen, or you want to make changes to the files selected for synchronization or to the comparison options, you can click the Close button to return to the Lister. You'll then see the following kind of display in the file list.
Only thing to note is that Subfolder clauses won't work with sync, but you can still filter by Location or Full Path. (The guide I linked goes into more detail.)