The Settings area of the Personal Bests module allows admins to completely configure the feature including turning the feature on/off, as pointed out by the red arrow in the figure above.

In the Activity Options tab, simply assign an Activity Type to a chip icon, choose a timeframe--weekly is recommended for most activities--and then select designation(s) and turn the activity on.  Click Save at the bottom of the page and the Personal Best will show immediately on the User Profile area and the feature will begin tracking that metric for all pertinent users.

Default Settings Tab

The Default Settings tab allows admins to configure the predefined personal bests for HA.  These are specialized and only the timeframe and user type can be changed, with the exception of Largest Placement which does not have a timeframe.  If you do not want to use these activities, simply turn them off.