hi,i learnt from DEMO that if i want to add node ,i should use method “addTo” . i have 2 questions .
1. Method “selectedItem” is used in “settings.html”,but i could not find this method on API but “getselecteditem” method.
2. if there is a parent node “A” ,not selected. how to add child node B to A in code since node A is not selected. i found if node A is selected and i could use “selecteditem” method to add a child node under A.