You could do this by using the conditional print controls and CALC columns. You'd need to have 12 FD columns, each hard coded to the period. Then add 12 CALC columns. They won't have a formula. In the CALC columns, you'll add BASE to the Fiscal Year and then hard code the Period.
The FD columns will have a print control of P<=B.
The CALC columns will have a print control of P>B.
Since the CALC columns have no formula, they will be zero. By adding the Fiscal Year and Period to the CALC columns, we can control if they print or not by using the P>B. If they are after the base period in the report, they'll print a zero.
In the Report Definition, click the Settings tab and uncheck Display blanks for zero amounts and check Display rows with no amounts.
If I generate this report for P1, the FD column prints with amounts. The CALC columns for periods 2 and 3 print with zeros.
