How do I install the Calculus extension?

To install the Calculus add-on, you must set up your card details in the Extension Store. To learn how to do it, click here.
Follow these steps to install the Calculus add-on:

1. Log in to your CRM account.
2. Click the Main Menu.
3. Click the Add-ons button at the bottom. You will see this button only if you are an Admin user.
4. Search for Calculus using the search bar in the Extension Store.
5. Click Buy.