To use this feature, your WordPress theme must support at least one widget area. If you are unsure about how widgets work, read more on WordPress widgets first.
1 To add a new Simple Calendar calendar widget, create a calendar first.
2 Click on Widgets from Appearance menu item in WordPress dashboard side menu.
3 Find in the left group of inactive widgets the one labeled Simple Calendar.
4 Drag this widget in the widget area on the right where you want to display it.
5 From the widget settings, you can enter a title for this widget, and select the calendar you wish to display.
Your selected calendar is now displayed in a widget in the chosen area. Any changes you will make to the selected calendar will also appear in the widgetized calendar.
Note: do not use the WordPress default text widget to display a calendar through a Simple Calendar shortcode. Use shortcodes in post content only.