How can I get the option form ui.richselcet when I choose the option

hi, webix team, I have a question:
here is the code:

webix.ui({
                        view: 'richselect',
                        container: key,
                        id: key,
                        value: '',
                        options: {
                            view: 'gridsuggest',
                            data: options,
                        },
                        on:{
                            onChange: function(_newVal, _oldVal) {
                                var self = this.getText();
                                if (_newVal == '' || null) {
                                    $scope.data[key] = '';
                                } else {
                                    $scope.data[key] = _newVal;
                                }
                            },
                        }
                    })

I want to get the option not only the id,but also I want to all values from the option, how can i get it ?

this.getList().getItem(_newVal);

@intregal thanks, it works!