how to get lists dynamically from c++

Hello folk, i have a set of listmodels in c++ that i am trying to view in QML. suppose i have 2 groups and each group contains a certain number of folders. i have written a few function that create seperate lists for each level of items. So now i have 1 list that contains all the groups and 2 lists that contain the folders of the groups list 1 = groups (2 groups in this case) list 2 = folders of group 1 list 3 = folders of group 2 Group1 (list1)   Folder1 (list2)   Folder2 (list2) Group2 (list1)   Folder1 (list2)     <-- (in this case both folder lists contain the same items)   Folder2 (list2) The following code creates a nested list of list 1 and list 2 Rectangle {     height: 300     width: 300       Component {         id: folderDelegate         Item {             width: 100             height: col2.childrenRect.height               Column {                 id: col2                 anchors.left: parent.left                 anchors.right: parent.right                   Text {                     id: name1                     text: " " + model.Name                 }             }         }     }       ListView {         id: outer         model: myModel         delegate: groupsDelegate         anchors.fill: parent     }       Component {         id: groupsDelegate           Item {             width: 100             height: col.childrenRect.height               Column {                 id: col                 anchors.left: parent.left                 anchors.right: parent.right                   Text {                     id: t1                     text: model.Name                 }                   ListView {                     id: folderlist                     model: foldermodel                     delegate: folderDelegate                     contentHeight: contentItem.childrenRect.height                     height: childrenRect.height                     anchors.left: parent.left                     anchors.right: parent.right                     clip: true                 }             }         }     } } what i am trying to do is to add list 3 beneath the 2nd item of the group list so this: Group1 (list1)   Folder1 (list2)   Folder2 (list2) Group2 (list1)   Folder1 (list3)     <-- (the folders of group2 should be displayed here)   Folder2 (list3) so my question is, how can i add the list dynamically? i was thinking of writing a function in c++ that gives QML the name of the listmodel through a QString. But doing something like ListView {    model: object.getStr()  <<---(function that returns the name of a model with a QString } function: Q_INVOKABLE QString getStr( return name ); but this does not work. how could i get something like that to work? after this, i would also need to be able to click on a folder to make a new screen appear that holds a list of all the items in the folder. I think that if i can make this work, expanding it to different levels of detail should work aswell Thanks in advance!!