The error is because you are trying to select a specific check, but instead the function expects a group of checks. More details are given in the example documentation page on how to obtain Check Group ID's:
I have modified the above script to include the Simulink Check group, which contains the check that you were trying to include and now there is no error.
Please have a look at the attached script ("trial.m") for the right modifications.
Unfortunately, the current behavior is such that the metric maps to a group of checks. the data visualizations and explorations are geared to look across many checks and provide an overview. It cannot be modified to look at a specific check instead of a group of checks.
The workaround would be to move all the checks that you want to be on the dashboard into a separate group and use that group with the metric customization.
