Login with Admin/Test Manager credentials.

Click on Projects from the Navigation menu.

Created Projects are displayed on the Project Listing page.

Click on Add User icon from any account of the project.

On the Users page >> select the Filter icon of the email column, search for the user(s) that needs to be added.

Click the Edit Icon >> then select the required project from the projects drop-down list >> and select Click Update.

Users will be added to the project.

Log in with the select user account allows access to project (s) and related scripts.