Delay from Frequency Response - Spectrum plot type

As we see in the title of the plot below, the delay is displayed in both milliseconds and meters.

In order to display the delay in the title, go to Plot->Plot Type Settings->Time Window…. In this dialog make sure the check box shown below is checked.

If the check box is not checked, the delay will not be displayed in the title.

Note: The delay displayed in the title is given by the start of the time window. This algorithm will include pre-ringing and may not always be correct. If you are in doubt, inspect the impulse response by displaying the Time Data plot type.