Place upper confidence limit for Multivariate EWMA Chart

Stat > Control Charts > Multivariate Charts > Multivariate EWMA > MEWMA Options > Limits

In Upper confidence limit bound, you can enter a bound for the upper confidence limit. The value must be greater than 0. If the calculated upper confidence limit is greater than the upper bound, Minitab draws a horizontal line labeled UB at the upper bound instead.