Pioneer Dj DDJ-FLX10 4-Channel DJ Controller for rekordbox and Serato DJ Pro (Black) - Manual (Page 125)

Serato DJ Pro
125
En
 Cutting the loop
Press the [LOOP IN, 1/2X] button during loop playback.
Each time you press the button, the loop cuts in half.
• You can cut the loop length in half even during 4 Beat Loop playback.
 Extending the loop
Press the [LOOP OUT, 2X] button during loop playback.
Each time you press the button, the loop doubles in length.
• You can double the loop length even during 4 Beat Loop playback.
 Canceling a loop
Press the [4 BEAT/EXIT] button.
The rest of the track continues to play without returning to the loop in
point.
 Changing the loop in point
Press the [LOOP IN, 1/2X] button while holding the [SHIFT] button and
turn the jog wheel during loop playback.
The loop in point changes.
 Changing the loop out point
Press the [LOOP OUT, 2X] button while holding the [SHIFT] button
and turn the jog wheel during loop playback.
The loop out point changes.