In this case I am referring to a grid of buttons that can be used to
trigger the various patterns. The is seperate from the pattern
sequencing grid. The buttons would be larger and shinier and the column
would be roughly 4 - 10 buttons wide. On each button the pattern name
would be displayed. When pressing the button it would trigger the
pattern on/off.
It's actually not needed in order to get the multiple patterns playing
at one time as Gabriel explains in his last post. However it is what AL
users would be used to.