Hi David,
You need to define the textual description of the context menu items for your custom cultures. We have modified your JSPlayground and provided below.
Code example:
<!--Defines the context menu items with spanish language-->
ej.datavisualization.Diagram.Locale["es-ES"] = {
cut: "Corte",
copy: "Copia",
paste: "Pasta",
undo: "Deshacer",
redo: "Rehacer",
selectAll: "Seleccionar todo",
grouping: "Agrupación",
group: "Grupo",
ungroup: "Desagrupar",
order: "Fin",
bringToFront: "Traer a delante",
moveForward: "Movimiento adelante",
sendToBack: "Enviar a espalda",
sendBackward: "Enviar hacia atrás"
};
Regards,
Shyam G