proftpd +create subdirectories home/user/xxx

Hello,

i installed virtualmin with proftpd as ftp server.
The ftp server works and i am able to add users with virtualmin "Add FTP Users".

When adding a user a home directory for this user is created.
Now i want to create 2 more directories under every users home.

Something like this:

/home/ftp/user1/incoming
/home/ftp/user1/outcoming

/home/ftp/user2/incoming
/home/ftp/user2/outcoming

I cant find anything about this in proftpd.
I tryed with CreateHome on skel path … but it didn`t work.