JLCooper MCS3 SP USB for OSX - Manual (Page 12)

The Shuttle Control can have a key sequence assigned not only to its counter clockwise
and clockwise directions, but also to itʼs center detent. The example below implements
JKL shuttling which is used by several nonlinear video editors. In other words, the
shuttle will send a “j” when being turned counter clockwise, an “l” when being turned
clockwise and a “k” when it is returned to the center position.
MCS3 SP USB Software
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