Custom sort?

[EricR]

Hi! I need to sort lists of lists according to their second element, i.e. an input {{1, 2}, {2, 2.5}, {3, 1.5}} should result in an output {{2, 2.5}, {1, 2}, {3, 1.5}}.

The first element of the sublists can be arbitrary (e.g. strings) and the second elements of the sublists are non-unique numbers, so they cannot be used for reverse indexing.

Is there a custom sort command for this on the HP Prime?