%if FLEXTRA_PREPARE_MODE = FORECAST %then 
 		%unset FLEXTRA_PERIOD_START_DATE
		%unset FLEXTRA_PERIOD_START_TIME
		%unset FLEXTRA_PERIOD_END_DATE
		%unset FLEXTRA_PERIOD_END_TIME
		%unset FLEXTRA_PERIOD_STEP
		%unset FLEXTRA_AN_MARS_EXPVER

%if FLEXTRA_PREPARE_MODE = PERIOD %then 
 		%unset FLEXTRA_DATE
		%unset FLEXTRA_TIME
		%unset FLEXTRA_STEP
