Added extra SettingsModel for a QML

cura/Settings/SidebarCustomMenuItemsModel.py

@@ -0,0 +1,32 @@
+from UM.Qt.ListModel import ListModel
+from PyQt5.QtCore import pyqtSlot, Qt
+
+class SidebarCustomMenuItemsModel(ListModel):
+    NameRole = Qt.UserRole + 1
+    ActionsRole = Qt.UserRole + 2
+    MenuItemRole = Qt.UserRole + 3
+
+    def __init__(self, parent=None):
+        super().__init__(parent)
+        self.addRoleName(self.NameRole, "name")
+        self.addRoleName(self.ActionsRole, "actions")
+        self.addRoleName(self.MenuItemRole, "menu_item")
+        self._updateExtensionList()
+
+    def _updateExtensionList(self)-> None:
+        from cura.CuraApplication import CuraApplication
+        for menu_item in CuraApplication.getInstance().getSidebarCustomMenuItems():
+
+            self.appendItem({
+                    "name": menu_item["name"],
+                    "actions": menu_item["actions"],
+                    "menu_item": menu_item["menu_item"]
+                })
+
+    @pyqtSlot(str, "QVariantList")
+    def callMenuItemMethod(self, menu_item_name: str, menu_item_actions: list)-> None:
+        for item in self._items:
+            if menu_item_name == item["name"]:
+                for method in menu_item_actions:
+                    getattr(item["menu_item"], method)()
+                break