private void OnEdit_EditGraphModel()
{
EditModelPopUp.Open();
}
/// <summary>
/// Open a popup window
/// </summary>
public static void Open()
{
popup = GetWindow <EditModelPopUp>(true, "Edit Model Popup");
popup.maxSize = popup.minSize = new Vector2(300, 120);
model = ChainEditorWindow._win.graph.model;
}