private void SyncClickItems()
        {
            bool removeAzureAudioIfAccountInvalid  = false;
            bool removeWatsonAudioIfAccountInvalid = false;

            if (IsAzureVoiceSelected())
            {
                removeAzureAudioIfAccountInvalid = !AzureRuntimeService.IsAzureAccountPresentAndValid;
            }
            if (IsWatsonVoiceSelected())
            {
                removeWatsonAudioIfAccountInvalid = !WatsonRuntimeService.IsWatsonAccountPresentAndValid;
            }
            // also align eLL first item click No to be the same as first click No on animation pane
            SyncCustomAnimationToTaskpane(uncheckAzureAudio: removeAzureAudioIfAccountInvalid,
                                          uncheckWatsonAudio: removeWatsonAudioIfAccountInvalid);
            List <ExplanationItem> items = Items.Where(x => x is ExplanationItem)
                                           .Cast <ExplanationItem>().ToList();
            ELearningService eLearningService = new ELearningService(slide, items);

            RemoveLabAnimationsFromAnimationPane(eLearningService);
            // align first click No on animation pane to be the same as eLL first click No
            AlignFirstClickNumberForCustomItem();
            ELearningLabTextStorageService.StoreSelfExplanationTextToSlide(
                Items.Where(x => x is ExplanationItem && !((ExplanationItem)x).IsEmpty)
                .Cast <ExplanationItem>().ToList(), slide);
            SyncLabItemToAnimationPane(eLearningService);
        }