Board Stat - De-select all

Hi BetaNYC,

Wondering if it's possible to add a way to de-select all under "Complaint Type"?  There currently is the option to de-select all in the "descriptor" box, but in order to narrow "complaint type" it appears that we have to manually select all fields one by one.

All the best and thank you,
Luke Szabados
CB5
luke@cb5.org