New Fake users can be added the following ways:

One by one
Via console > Fake Users > Add fake user. Fill in the form and that's it. Users added via this hidden Join form do not appear in the regular user statistics and do not go through the "Mandatory user approve" and moderation.

CSV upload mass upload
You need to compose a file with the fake users data using as an example FakeUserSample.csv file placed in the plugin's directory. Then you need to upload it via Admin Area > Installed plugins > Fake users and Moderators >> Settings. After the upload you will need to merge the uploaded data with the available profile questions. If your file contains multiple users, you have to merge it only for one user, the rest will be done automatically. After that as the profile import is launched it will be handled by cron that will import 100 users every minute. When the import is completed you will see a list of the successfully imported users.

If the uploaded users should have Video or Photos attached you need to upload these files to your server and in the CSV file indicate URLs of these files for each user record. Like this:
a) if only one file per user: https://example.com/photo1.jpg
b) if several: "https://example.com/photo1.jpg,https://example.com/photo2.jpg"

Mark a real user as a Fake
Via Admin Area > Users. Tick off a user(s) and click "Mark as Fake" button at the bottom. You can view all Fake profiles as admin via Admin Area > Users > Fake users. You can also "Remove from Fake" if it appears that the user was added to the list by a mistake.
Clicking in console > Fake Users > User List - admin and moderators will see a list of All fake users. Click "Login" and you will be logged in and behave on the site as the Fake profile.

In console "Fake messages" admin and moderators will see all new messages sent to any fake user. Clicking on a message will login admin/moderator as the fake user the message was sent to. Click in console > Fake Users > Login as Admin/Moderator to login back to personal account.