Count boolean values in a column, ["true" only] for use in a report

Count boolean values in a column, ["true" only] for use in a report

I need to report on a table that has many columns where the data type is boolean "decision" values of true/false. I only need the "true" to be counted,


Example is:   EMPLOYEE  answers inbound phone call and logs the  CALLER  name. Each employee gets credit for a call as long as CALLER  is not blank & 1 decision field D1,D2, or  D3  is true. This pivot reports the totals every week.


table data
EMPLOYEE
CALL   
D1         D2       D3
EmployeeA  Tom   FALSE    TRUE   FALSE 
EmployeeA Nick  FALSE    TRUE  TRUE
EmployeeB Henry  TRUE   TRUE  TRUE
EmployeeB Scott  TRUE   TRUE  FALSE 
EmployeeC Mary  FALSE   TRUE  FALSE 
EmployeeC Susan  TRUE  FALSE   TRUE

If I were to filter column  D1 to true only which would count total of 3 (which is correct, 3 TRUE's) Then....
CALLER total would be 3, not 6. 
D2 total  would be 2, not 5
D3 total  would be 2, not 3

pivot (what I am trying to have data report as)

CALLER

D1

D2

D3

Emp A

2

2

1

Emp B

2

2

2

1

Emp C

2

1

1

1

Total

6

3

5

3


How do I use the reports pivot or chart to total "true's" for each column and evaluate "false" as a null value or whatever...just not count it.

I had an idea to make hidden formula fields for every Boolean field and have the formula field evaluate the column and return a 1 for true and "blank" for false and then use the alternate formula field in reporting. Don't know how to do that?

If I could have the decision fields return 1 for true and "blank" for false and still be a "check box" in the form that would be great. I don't know how to do that?