How to Use Mail Merge with a Shared Mailbox

How do I set up a mail merge with my shared mailbox?

I am not sure how to use mail merge with my shared mailbox. Can you please assist?

First, manually add the shared mailbox to Outlook. On a Windows device, open Outlook and click File > Account, then click New to create a new email account.
When you see the Welcome to Outlook screen, open the Advanced Options menu, select Let me set up my account manually, then click Connect.
Select Exchange for the account type.
When prompted to enter the password for the shared mailbox, delete the email address for the shared mailbox and enter your WSU email address, your WSU password, and click OK.
When you return to the Account Settings window, you will see the shared mailbox listed under your accounts.
Next, set up the shared mailbox profile. Close Outlook on your computer, open Control Panel, and select the Mail icon. Click Show Profiles.
In the Profiles menu, select Prompt for a profile to be used and click OK. The next time you restart Outlook, you will be prompted to select which profile to use.
To start the mail merge, open Outlook and select the profile for the shared mailbox.
You are now able to set up your mail merge and send it from the shared mailbox. Once you have processed your mail merge, close Outlook and reopen it to select your primary Outlook profile.