I'm not sure what the actual pack is called in the UK. Mine is equipped with the "Platinum Pack" which includes the "Pack assistance Tour" and it has active lane centering.
It's hard to tell from pitures if a car is equpped with it, but when it is available then:
- At the end of the indicator lever there is a small push button do toggle the active lane centering on and off
- In the dashboard when cruise control is enabled and lane centering detected the lanes, it also shows the left/right lane next to that icon in green. When the feature is off no lines are shown. When no lanes are detected the lines are white.
- In the screen you mentioned where you can configure "minimal", "maximal" and "individual" you will find in the upper right corner a gear icon that leads to another screen where you can configure this setting. You also find other settings related to adaptive cruise control there.