Hi Sham,thanks for your reply, but I need to set it in the node properties. In other widgets I've done it succesfully, but usually it involves a string or a number. In this case is a pair of values (width and height).

How can I set the default value of a sizefield component as a property?This component actually has two values "heightParameter" and "widthParameter", but here specifies "defaultValue" as a single String and "value" as Mixed.