Arturia BeatStep Pro MIDI/Analog Controller and Sequencer Kit with CV/Gate Cables (Black) - Manual (Page 48)

4.2.6. Pattern Length
The default length is 16 steps, but a pattern can be up to 64 steps long.
If you’d like your pattern to be less than 16 steps long, simply hold the LST STEP button and
then press the Step button that corresponds to the desired setting. If you'd like it to be longer
than 16 steps, see Pattern Lengths > 16 steps [p.44] below.
4.2.6.1. Pattern Follow mode
When working with patterns longer than 16 steps there is an important feature to know.
When the double arrow buttons (« ») are pressed at the same time, their LEDs will toggle off
and on. This takes BeatStep Pro into and out of Pattern Follow mode.
When this mode is active during playback, the Step Group LEDs and the Step buttons will
show steps 1-16, then steps 17-32, then return to steps 1-16, and so on.
When « » LEDs are Pattern Follow mode is
Dark OFF
Lit ON

♪ : The playback of the pattern itself is not affected when Pattern Follow mode is disabled. This only
affects what you are seeing, which should make it easier to edit particular sections of the pattern.
43 Arturia - User Manual BeatStep Pro - The Drum Sequencer