New and updated file(s) only

Where is the "New and updated file(s) only" option in version 4? I've found it listed in the documentation, but I can't find it anywhere in the program.

Thanks!

EDIT: I think I found this option in the ini file. Is it the key NewerOnly? Value 0 being false and value 1 being true?

You will find it on transfer options dialoag when you press More button.