In more detail im working on a conversion of a Python Algo to c#, How ever one hurdle I have been scratching my head has been finding some sort of the append method in c#? Im using a local install of Quantconnect and no method is provided, how ever when going to the online editor on Quantconnect, I get an intellisense recomendation for the .Append method, Am I doing something wrong or is there a real problem?