drill-down
n.— «By combining this data with GIS tools and business intelligence for in-depth analysis, also known as data “drill-downs,” the DCRA can create dynamic, up-to-date maps of problem areas and accompany the maps with in-depth, real-time analysis of the problem’s cause.» —“Quantifiable Improvements” by Chad Vander Veen Government Technology Mar. 28, 2006. (source: Double-Tongued Dictionary)