To create a geofence, 

• Go to the Geofences mode.
• Tap the icon to the right of the search bar or select Create geofence in the menu that opens after a long tap on the map.

• Type in the name of the geofence and tap Save. 

• Select the location and the size of the geofence, moving and scaling the map.

• Select the color.

• If necessary, specify the description. By default, the address of the geofence's central point is specified.

• Specify the visibility value of the geofence (from 1 to 19). 

• If necessary, select the group to which the geofence should belong.
• Save the changes.