For event lists and all calendar views...
this option allows you to display options to add an event to a personal or app calendar such as Google.
To find this design item...
Step 1: After you log in, click on Calendars (brown box below).
The Your Calendars page will open.
Step 2: Choose the calendar you wish to modify (brown box below).
Step 3: Click on Design (brown box below).
Step 4: Click on Events (brown box below).
Step 5: Scroll down until you find Show Add to calendar.
To modify this design item...
In the image below, the adding to calendar options are toggled off.
As you can see, there is no adding to calendar information in the event details below.
Let's toggle on this button.
Now, adding to calendar options are displayed in the event details (brown box below). In this case, there are two options - a personal calendar and a Google calendar.
Click Save at the bottom of the column to save your changes.