Use Draw Previous Color Block
to step through the color blocks in reverse order. Only one color is visible at a time. All the other colors are automatically hidden (unchecked). The work area displays only the stitches in the visible color block.
The Draw Range shows the Start and End stitches of the color block and the sliders move as each color is selected.
Alternatively, you can right-click a color block in the worksheet and select Show only this Color from the context menu. See Color Worksheet.
Shortcut
Control Strip: