Greetings from Syncfusion.
Query 1: "EnableLooping" to enable scrolling behaviour for each of the columns”
The property “EnableLooping” in SfPicker is to make the items inside the picker to get looped from 1st item to last item. We cannot change the scrolling behavior or SfPicker by using this property. Also, we do not have support to scroll the items of SfPicker by using Mouse scrolling on UWP platform.
Query 2: “I miss the option for a third button dealing with the possibility to clear the picker”
We can have any number of buttons on the footer of the SfPicker, by default it has been given with the “Ok” and “Cancel” button. We can use custom view to add the required number of buttons on the footer.
We have prepared a sample for the same which have three buttons on the footer. Please download the sample from the link given below.
Please let us know if you have any concerns.