An electronic device displays a chart, which includes visual marks that represent calculated values derived from a set of data, and panes formed by intersection of rows and columns. A current focus is on a first visual mark at a first position. The device concurrently displays a chart-calculations-options area, which includes display options for a type of calculation and a type of data partitioning. Visual marks in a first set of visual marks are visually distinguished from other visual marks. The first set of visual marks includes the first visual mark, and corresponds to a first selected option for a type of calculation and a first selected option for a type of data partitioning. The device detects an input that selects a second option for a type of data partitioning, and, in response, visually distinguishes visual marks in a second set of visual marks in accordance with the selection.