Probably, you can use this:

reverse drill down / reverse drilldown

I've just googled a little. The source is: http://listserv.uga.edu/cgi-bin/wa?A2=ind0802d&L=sas-l&P=37593

Probably, you can use reverse drill down (or, reverse drilldown).

I found this on a University of Georgia memo:

The opposite of drill down is reverse drill down where the initial view is at the most granular available level, rather than a summarised view.

Probably, you can use this:

reverse drill down

I've just googled a little. The source is: http://listserv.uga.edu/cgi-bin/wa?A2=ind0802d&L=sas-l&P=37593

Probably, you can use this:

reverse drill down / reverse drilldown

I've just googled a little. The source is: http://listserv.uga.edu/cgi-bin/wa?A2=ind0802d&L=sas-l&P=37593