How to create multiple users in proFTPd?

Question

linux

I made a home server on ubuntu, I use webmin, I set up a proFTPd ftp server on it, everything works on my user who has full access to all files. When hosted on Windows through the filezilla server, I could create a user, give him his folder and give him certain rights. How to do it via webmin. You need to give the user a folder, but prohibit deleting files.