[Widget Role] Tree [Description] A form of a Select (or, generally, of a list having groups inside groups) - where sub trees can be collapsed and expanded [Inherited Concepts] Select Chart Expanded [Inherited states] Disable zoom multiselectable [nameRef] 
Child content title
T i t l e
C h i l d c o n t e n t t i t l e
C h i l d c o n t e n y t i t l e
C o n t e n t c h i l d t i t l e