Pioneer Dj DDJ-FLX10 4-Channel DJ Controller for rekordbox and Serato DJ Pro (Black) - Manual (Page 159)

Changing the settings
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Setting Utility software
You can use the Setting Utility to perform checks and change settings
for connections between the unit and your PC/Mac.
Displaying the Setting Utility
For Mac
In Finder, open the [Applications] folder, then click the [Pioneer] >
[DDJ-FLX10] > [DDJ-FLX10 Setting Utility] .
For Windows 11
In the [Start] menu, open the [All apps] screen, then click [Pioneer] >
[DDJ-FLX10 Setting Utility] .
For Windows 10
In the [Start] menu, click [Pioneer] > [DDJ-FLX10 Setting Utility] .