/// <summary>
        /// Changes the active group to the group specified.
        /// </summary>
        /// <param name="localSummit">Summit System</param>
        /// <param name="groupToChangeTo">Medtronic Active Group Format to change to</param>
        /// <param name="localSenseModel">Sense Model that uses the streaming parameters for turning stream on and off</param>
        /// <returns>Tuple with bool true if success or false if not. string give error message</returns>
        public async Task <Tuple <bool, string> > ChangeActiveGroup(SummitSystem localSummit, ActiveGroup groupToChangeTo, SenseModel localSenseModel)
        {
            if (localSummit == null || localSummit.IsDisposed)
            {
                return(Tuple.Create(false, "Error: Summit null or disposed."));
            }
            APIReturnInfo bufferReturnInfo;

            try
            {
                int counter = 5;
                summitSensing.StopStreaming(localSummit, true);
                do
                {
                    bufferReturnInfo = await Task.Run(() => localSummit.StimChangeActiveGroup(groupToChangeTo));

                    if (counter < 5)
                    {
                        Thread.Sleep(400);
                    }
                    counter--;
                } while ((bufferReturnInfo.RejectCode != 0) && counter > 0);
                //Start streaming
                summitSensing.StartStreaming(localSummit, localSenseModel, true);
                if ((bufferReturnInfo.RejectCode != 0) && counter == 0)
                {
                    _log.Warn(":: Error: Medtronic API return error changing active group: " + bufferReturnInfo.Descriptor + ". Reject Code: " + bufferReturnInfo.RejectCode);

                    return(Tuple.Create(false, "Error: Medtronic API return error changing active group: " + bufferReturnInfo.Descriptor + ". Reject Code: " + bufferReturnInfo.RejectCode));
                }
            }
            catch (Exception e)
            {
                _log.Error(e);
                return(Tuple.Create(false, "Error: Could not change groups"));
            }
            return(Tuple.Create(true, "Successfully changed groups"));
        }