If you are working on an SCU computer, you can using the Grammarly online editor.
Step 1: Navigate to Grammarly portal: https://www.grammarly.com
Step 2: Click the Log In button
Step 3: Log in with your SCU email address and Grammarly password.
Grammarly doesn't use the same sign on system. If you can't remember your password, please click the "Can’t log in?" button
Step 4: You are now ready to use the online editor
For instructions on how to use the online editor, refer: Additional support for Desktop app and online editor