Brother BES-1260 - Manual (Page 10)

3. The bottom colors, of the Needle Bar Change window, (1-12) represent the
12 needles on the machine.
4. In this example the design has 8 color changes. The top colors (1-8)
represent the color changes in the design.
5. To select the 1 st color of the design to sew needle 12, you click and drag the
color change bubble over needle 12. When doing this, please make sure and
keep the bubble within the color change window as indicated by the red
dashed line or your change will not take effect.