diff --git a/libtaskmanager/tasksmodel.h b/libtaskmanager/tasksmodel.h
--- a/libtaskmanager/tasksmodel.h
+++ b/libtaskmanager/tasksmodel.h
@@ -811,6 +811,17 @@
      */
     Q_INVOKABLE QModelIndex makeModelIndex(int row, int childRow = -1) const;
 
+    /**
+     * Given a row in the model, returns a QPersistentModelIndex for it. To get an index
+     * for a child in a task group, an optional child row may be passed as well.
+     *
+     * @param row A row index in the model.
+     * @param childRow A row index for a child of the task group at the given row.
+     * @returns a model index for the task at the given row, or for one of its
+     * child tasks.
+     */
+    Q_INVOKABLE QPersistentModelIndex makePersistentModelIndex(int row, int childRow = -1) const;
+
     void classBegin() override;
     void componentComplete() override;
 
diff --git a/libtaskmanager/tasksmodel.cpp b/libtaskmanager/tasksmodel.cpp
--- a/libtaskmanager/tasksmodel.cpp
+++ b/libtaskmanager/tasksmodel.cpp
@@ -1712,6 +1712,11 @@
     return QModelIndex();
 }
 
+QPersistentModelIndex TasksModel::makePersistentModelIndex(int row, int childCount) const
+{
+    return QPersistentModelIndex(makeModelIndex(row, childCount));
+}
+
 void TasksModel::classBegin()
 {
     d->usedByQml = true;