Calculated Columns, calculate before aggregation in Analytic view, not in Calculation View

Hi,

I have some analytic views whereby I have calculated columns set as type "Measure", "Calculate before Aggregation" set and "Aggregation Type" set as MIN/MAX etc.  So far so good, example screenshot below.

I'm now starting to explore calculation views, and note that the aggregation types min/max for calculated columns are not available, nor is "Calculate before Aggregation".  I quote from page 237 of the SPS07 developer guide:

"Calculation views can be simple and mirror the functionality found in both attribute views and analytic views."

Screenshot below from calculated column in calculation view, no MIN/MAX/SUM option or ""Calculate before Aggregation".

Obvious answer to this?

Many thanks,

Jon-Paul.