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