Touch a pattern to create a series of contours, known as echoing.
The echo pattern can be modified in five ways:

<b>Tightness
This option changes how closely each contour line follows the previous
one. The tightest echo is at 100%.  

<b>Gap
Creates a space between the contour lines.
NOTE that you can enter a negative value, which will create echo lines
inside the pattern. Use the +/- key to switch between positive and 
negative numbers.

<b>Smooth
Alters the smoothness of the contour lines.  There are four settings, 
none, low, medium and high.  At "high" the contour is the smoothest, 
at "none" the contour is the most detailed.

<b>Gap Progress
You can set increasing or decreasing gap between contour lines with
this control. Positive values increase, negative values decrease the
consecutive gaps. Use the +/- key to switch between positive and
negative numbers.

<b>Repeats
Set the number of echo lines with this control. The echoing may exceed
the desired block boundaries, but you will be clip them later.

Touch the - and + buttons or use the keypad to change the settings.

NOTE that touching the screen is used to select patterns instead of
changing the highlighted settings, as on the Modify screen.

NOTE that you can select multiple patterns. The echoing will avoid
crossing of the echo lines in this case.
