ProFTPD User Access

I am running the latest and greatest firmware/etc… on my Drobo5N.

I installed WordPress and ProFTPD to access the wordpress install.

When I log into the FTP I can see everything, download stuff, but I can’t upload anything, create folders, etc…

There’s nothing in the ProFTPD admin for setting user permissions.

How can I create a user in ProFTPD that has upload permissions?