redi redi_api api excel c# redi plus vba orders redi api python dde python rediplus excel api order order entry portfolio trader trading python api redi demo api redi python sending orders position monitor cachecontrol algo rediapi cancel rest api dotnet redi api outside visual studio python redi api future spread startegy portfoliotrader redi api documentation com cash nuget connection links .net core hot keys creation python real-time api performance account options on futures l1 doc redilink price incorrect one symbol api enquiry sending orders via redi using batch mode orderrefkey trades error send broker options eikon clientdata link cloud csharp Service london desktop bug csv stage visual studio 2013 order fields automation .net cancel all postion sample code message monitor excel vba api price do not mat strategy getcell snapshot pnl l2 transaction dde links cell reference no update message quotes example python wrapper for redi error message slow locate futures market data excel vba stop market value datastream vwap redi type library e mini ATS redis currency conversion rates