How to create a new Folder by File Manager in Plesk
To create a new folder in File Manager, perform the following steps:
1 – Logged in to Plesk.
2 – Go to Websites & Domains.
3 – Click File Manager under the domain you want to manage it.
4 – Open the folder where the file will be in.
5 – Click New from toolbar and select Create Directory.
6 – Enter a name for the new directory, then click OK.