Under Subscriptions, select Institutional Subscription:

On the right, select the green Add New button:

Follow the prompts to create your new Institutional Subscription, and everyone who joins using the email address pattern will be included:

Under Subscriptions, select Institutional Subscription:
On the right, select the green Add New button:
Follow the prompts to create your new Institutional Subscription, and everyone who joins using the email address pattern will be included: