When configuring a web user's authentication settings to SFTP you can allow the user to authenticate using a public SSH key. This can replace the need for a password or enhance your security settings by forcing the user to provide both a password and a key.
In order for this to work you must place the web users public key into the *installation folder*/userdata/keys/ssh/ directory. The file name must match the user name with the .pub extension (e.g. jsmith.pub).
Does importing a public key via "SSH Key Manager" and then associating that key with the WebUser accomplish the same results? Or do I still need to go place the .pub file into the /userdata/keys/ssh directory?