CheckLists have checkedState: https://sdkdocs.roku.com/display/sdkdoc/CheckList#CheckList-Fields
RadioButtonLists have checkedItem: https://sdkdocs.roku.com/display/sdkdoc/RadioButtonList#RadioButtonList-Fields
Thank you renojim,
In "SceneGraphTutorial" source code found:
example = m.top.findNode("exampleCheckList")
example.checkedState = [ true, false, true, false ]
When I do inspect elements by "sgnodes all" with telent I cannot find any value related to checklist items that returns checkedState array (boolean). (any help appreciated)
In the next step I need to find a link to between element and checkedState that probably ispossible by having index of element in checklist and compare it with checkedState array.