This article explains how to set up Touché or Touché SE to work within Apple Logic Pro X.
Logic Pro X scans its plug-in database on every launch. Logic Pro X will scan the default folder for AU plug-ins, which contains the file Lié.component.
If Lié is not recognized in Logic Pro X, please check if you find its entry in Plug-In Manager:
Preferences -> Plug-in Manager
Click on 'Expressive' in the Manufacturer list to easily find Lié and make sure the 'Use' box is ticked.
For more information on the subject, read this external article from Apple: Disable, remove, or rescan third-party Audio Units plug-ins
When it comes to MIDI devices, Logic is fully integrated with the Audio MIDI Setup of macOS. This is why there is no need for an extra panel inside Logic, in order to activate the MIDI input of Touché (SE) manually.
For more information on the subject, read this external article from Apple: Set up MIDI devices using Audio MIDI Setup on Mac
If not all four axes of Touché (SE) are recognized, please read here: Some of Touché's axes are not recognized in Logic
You will find the automation data that you recorded as gestures on Touché (SE) as Controller Lanes within the MIDI region.
You can quickly step through the Automation Lanes with a dedicated button called 'Automation Cycle Through' button.
For more information on the subject, read this external article from Apple: Logic Pro X: Use automation in the Piano Roll Editor
In order to control other parameters than those of VST instruments hosted inside Lié, you could use Touché (SE) as a MIDI class compliant controller in Logic.
Attention: As long as an axis of Touché SE is assigned in Smart Controls, this axis won't be able to get through to control Lié anymore. See here: Some of Touché's axes are not recognized in Logic
If you want to record your parameter changes:
More info about Smart Controls is offered by Apple themselves in these external articles: Logic Pro X: Smart Controls overview