Hi louisp! Good question. So the sort list component takes a master list, the one that goes into the K and another list (or various lists). The component will sort the K master list from 'small to big'. Your absolute values output are the master list in this case so those will be sorted small to big, now like you correctly pointed out: 0: 0.90296....................0: 0.522372 1: 0.522372......---->......1: 0.561451 2: 0.561451.....................2: 0.90296 etc.....................................etc. This will be the sorted list for branch 6. Now the other list in the A input are from the remap values component. The component will look at the index of this list (number in front of the value) for the sorting and comparing it where the index is from the sorted master list. 1: 0.522372 is the first item, so index 1 is first. Then it's 2: 0.561451, so index 2, then 0: 0.90296, so index 0 etc etc. So the sequence of indexes is 1,2,0,........ It sorts it alongside the master list. Which results in: 0: 0.0................................0: 0.380588 1: 0.380588......----->......1: 1.464411 2: 1.464411........................2: 0.0 etc......................................etc. I hope this clarifies it, else create a series component with 9 values from 0-8 and plug it into the B input from the sort value component (zoom into the component to add more inputs by hitting the + sign). Now you can see the indexes how the list was reorganized. Good luck! Arie