Whenever a widget needs to be called so that it displays on a web page, it can be done via providing the shortcode which is formatted as such:
[widget=widget name here]
How to Access This Short Code
In order to access the shortcode version of the widgets, navigate to Toolbox » Widget Manager
For Customized Widgets or Default widgets, click "Actions" which will open the drop-down menu. Select "Copy Shortcode":
Another alternative is to open the widget and copy the shortcode from all the way down:
Copy the code on the left in order to call a widget on a web page:
Where to Paste This Short Code?
In order to call a widget on a web page, navigate to Content » Edit Web Pages » Click on "New Web Page" OR click on "Edit" on the preferred existing page:
Inside the editor, paste the shortcode that was copied earlier to the section highlighted down below:
After clicking on "Save Web Page", the web page will be created on the fly and the respective widget will be called.