The Fast Track User Login allows the user to easily log all the users that have worked on the project in which the log users is enabled.
The first step will be to go to you FT manage tab in the ribbon
Then you will go and select the LOG USERS command under the settings panel.
Upon starting the command you will get a prompt for enabling the logging. This is per project and is not a system variable.
Once you have enabled the User Logging a folder will be created where the project files are located, either on the user system or on the network.
This is where the log file will be located.
After you have enabled the logging of the users you can select the command LIST USERS which you will then be able to see in the command line who has opened the current project.