Drill down (downlevel)

Drill on a single item

Drill down to see details. Tap on whatever interests you and then choose Downlevel.

Drill on multiple

Drill down on multiple items to narrow down on them: 
1) Touch and hold to select.
2) Choose the Drill option at the top of the screen. 

Tip: Drilling is not available in widgets that use custom programming (i.e., custom views).