In manual mode, Patcher assumes that you create ChangeLog entries manually, as you write the code, so it won't create ChangeLog skeletons. It is important to understand that in this situation, ChangeLog entries must have been written before you call Patcher. Patcher won't let you write them in the process.
Even in manual mode, Patcher might still need to know the
affected ChangeLog files (for the commit process) and your exact
ChangeLog entries in each of these files (for insertion in the message).
The ChangeLog files are automatically deduced from the patch. When
that's required, however, you will be presented with each ChangeLog file
in turn, and invited to precise the number of ChangeLog entries
concerning this patch. These entries must of course appear at the top of
the file.