Create a monthly calendar view :

As for others indicators views, start by right clicking on your document's background and select "New indicator view".

Hover your cursor over the Monthly calendar square and click on "Select".

1. Choose, at your convenience, a long and a short title (both optional).
2. Click on indicator to choose the indicator to use in your calendar.
3. Choose an existing indicator from the list or create a new indicator by clicking on "New indicator".
4. Click on "Create view" to create the calendar view in your document.

The Monthly calendar view :

Click on the calendar's squares to edit the associated values or see details for consolidated indicators.