Applies to Launchpad X
To set the Launchpad Pro MK3 up with Ableton Live 10 please connect your Launchpad and then open Ableton.
Then go to the Preferences (Options > Preferences on Windows, Ableton Live > Preferences on macOS) and go to the Link/Tempo/MIDI tab:
Then select the Launchpad X Control Surface:
And then set the LaunchpadX DAW Out and DAW (Launchpad_X_Input on Windows) In for the Input and Output ports and then match the settings below:`