Setting up your Seaboard RISE 2 with Ableton Live 11 is pretty straightforward, and since Live 11 is built for MPE (MIDI Polyphonic Expression), you can take full advantage of the expressive capabilities of the RISE 2 and MPE software instruments like Equator2. Here's how to get started:

1. Connect your Seaboard RISE 2 to your computer using a USB cable or Bluetooth (Mac only).

2. Open ROLI Dashboard and select 'MPE' as the MIDI mode. 

3. Open Ableton Live 11 and go to Preferences > MIDI.

4. In the MIDI Ports section, make sure that the Seaboard RISE 2 has both 'Track' and 'MPE' ticked.

5. Create a new MIDI track in Ableton Live 11 and select your preferred MPE-ready virtual instrument - such as Equator2.

6. Right-click the plugin panel and select 'Enable MPE Mode'

7. Open the plugin, select a preset from the MPE category, arm the MIDI track for recording and start playing your ROLI Seaboard RISE 2. You should hear the sound of your selected virtual instrument and have full 5D touch expression. 

With these simple steps, you can set up your ROLI Seaboard RISE 2 with Ableton Live 11 and start using MPE to create expressive and dynamic music. If you encounter any issues, be sure to contact the Support Team for further assistance. Happy music-making!