Hi, thanks for you reply. I managed to show the infinite loop option, but I notices a strange and unexpected behaviour:
The option only shows when I choose more than one slide to show at a time (even though this option has nothing to do with that).
The workaround: I can chose a number >1 for slides to show, toggle infinite loop on, and then again choose one slide to show at a time. Even though the option for infinite loop disappears, it stays switched on.
But a new problem occured: Switching the infinite loop option on and choose only one slide to show at a time, it displays not only one slide, but also a narrow bit of the previous and next slide.
Expected behaviour: I want to show only one slide at a time, but switch on infinite loop. Basicly the first example on the github page of slick https://kenwheeler.github.io/slick/
Thanks again