I used addAll like this: ```activityNodesObject = ...

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[sqia09]

I used addAll like this:

activityNodesObject = it.apply {
                                list = data.nodeList1
                                list.addAll(data.nodeList2)
                                list.addAll(data.nodeList3)
                                list.addAll(data.nodeList4)
                                list.addAll(data.nodeList5)
                                list.addAll(data.nodeList6)
                            }