edelkrone products do not have a star tracking feature; however, all app-controlled edelkrone products include Time-Lapse Mode. This feature will allow you to shoot long exposure Time-Lapses with all edelkrone products.
You may set your start and endpoints with the help of the Numeric Control feature and then adjust the Time-Lapse duration accordingly, as shown in the video below:
By using the Numeric Control feature, you will be able to set your rotation angle accurately.
Next, you may set your Time-Lapse duration depending on how many degrees you would like the system to rotate per hour.
User Manual video of Time-Lapse feature:
As a reference, shared below is a SliderPLUS Long, Slide Module, FlexTILT Head 2, and HeadONE review from a popular astrophotography artist.