If you have chosen the Rename option you can set File name rule, by which the renaming of files will be made at the originating of event. It can be selected from the list of existing templates or set manually, using the above mentioned date and time conventions (see Macro strings):

Filename(N) - the number of file copy is added to the end of the file name.

CopyN - Copy and a number of the copy are inserted to the beginning of the file name.

yyyy-mm-dd_, etc. - date in a specified format is added before the file name.

Here d - date, m - month number, y - digit of year, h - hours, n - minutes, s - seconds.

Also you can choose which file will be renamed: old (already existing) file  or new (replicating) one.

File rename options