i want to plot a confusion matrix for 8x8 matrix using classification learner app but more than 5x5 matrix does not include accuracy and percentage in confusion matrix

i used classification learner app and trained the dataset using linear svm.now i wanted to plot confusion matrix for this but the percentage and accuracy is not shown in matrix but if i reduce my unique responses to 5 labels then accuracy and percentage are shown.any method i can use for plotting confusion matrix for 8 unique labels with accuracy mentioned in the matrix.