In my repiting group the listings have prices from option set for example: up to 10, 10-50, 50-100 etc. How can I make sorting and flitration of repiting group by these option set?

[Newed]

Cases like this, where the field used to sorting is an object like a Option Set or even another Data Type, needs to use plugins like List Shifter (free in the past but now it is part of the paid plugin Floppy).