Selecting Color Pattern Draw on the Design Menu allows you to select a sequence of colors from the color palette and draw with that sequence. The "Draw with Color Pattern" needs to be switched on as shown below, then the drawing tools used in the color bars for warp and weft will use the defined sequence.
In addition to defining a series of colors planned for warp and weft, this tool can also simulate a variegated yarn, although not as accurately as defining a varieted yarn in the Yarn Catalog (upcoming feature).
When ready to stop drawing with the color pattern, simply click the "on" bar to turn this off and return to drawing color with the currently selected color from the palette. Closing the dialog box and reopening will have the last used colors available. Use the Clear button to remove all the colors.