Dynamic created buttons change content of other dynamic created elements

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Hello

With the help of the forum I dynamically created some buttons which I assigned a function to a property..
Now, inside this function, I would like to refer to other Items which are also dynamically created.

The (pseudo)code currently looks something like this:

@
property var money_back: { '50e': 0,
'20e': 0,
'10e': 0,
'5e': 0,
'2e': 0,
'1e': 0,
'50c': 0,
'20c': 0,
'10c': 0,
'5c': 0,
'2c': 0,
'1c': 0 };
Row{
id:money_row
spacing: 5

    Component.onCompleted: {
        var button = Qt.createComponent("BubbleButton.qml");
        var selected = Qt.createComponent("ChangeText.qml");
        for (var prop in change_screen.money_back){
            selected.createObject(money_row,{
                                      "id": "selected_"+prop,
                                      "selected": "0"
                                    });
            button.createObject(money_row,{
                                            "id": "button_"+prop,
                                            "action": [function(){ selected_50e.selected += 1; }],
                                            //"ps": ps,
                                            "img_id.source": prop+".png",
                                            "img_id.align": "center",
                                            "color": "transparent"
                                        });
        }
    }@

What I want to do in the end is the following: create Buttons for each coin/note and when clicked on, I want to change the content of the Text.. like a counter, how many times I clicked on a Button.

Is there an easier way than going down the road with signals and such? (looks complicated)

thank you for your time and help
-m