Flatten — flatten out any sequence of levels in a nested list
Partition — partition lists or nested lists into sublists
Join — join lists together at any level
Sort — sort lexicographically, or with any comparison function
SortBy — sort by the values of a function applied to elements
Reverse — reverse a list, at any level
RotateLeft,
RotateRight — cyclically rotate lists at any depth
Transpose — transpose any collection of levels
Riffle — intersperse additional elements
Split — split into runs of identical elements
Union,
Tally — enumerate, tally all distinct elements in a list
