Here https://noisegate.com.au/arturia-release-firmware-update-v1-1-for-minilab-3-keyboard-controller/ it is written:
New Scale Mode
The update introduces a new scale mode, which allows you to lock the Minilab 3 to a specific scale or mode. This feature is particularly useful for musicians who are not familiar with music theory, as it allows you to easily play in key without having to worry about hitting the wrong notes. The new scale mode also includes a range of different scales and modes, including major, minor, and pentatonic scales.
Neither the documentation nor the official website mentions this feature in relation to Minilab 3. So if there is a scaling mode in Minilab 3, and if there is one, then how to use it?