Select the analysis options for Single Exponential Smoothing

Stat > Time Series > Single Exp Smoothing > Options

Add a custom title or set the initial smoothed value.

Title

In Title, enter your own custom title to replace the default title.

Set initial smoothed value

In Use average of first K observations K =, enter a value for K. The default value is appropriate for most situations. Minitab uses the average of the first (K) observations for the initial smoothed value.