How do I add a new zone (Colour block)?

Select add colour block from the toolbar illustration
1.
Select add colour block from the toolbar
Name the zone and select save illustration
2.
Name the zone and select save
Use the mouse to move the selected item, select one of the 4 corners to resize the zone. illustration
3.
Use the mouse to move the selected item, select one of the 4 corners to resize the zone.