diff --git a/operators/sort-keys.md b/operators/sort-keys.md
index b5101dc1..36c605d2 100644
--- a/operators/sort-keys.md
+++ b/operators/sort-keys.md
@@ -12,6 +12,9 @@ diff file1.yml file2.yml
 
 Note that `yq` does not yet consider anchors when sorting by keys - this may result in invalid yaml documents if your are using merge anchors.
 
+For more advanced sorting, using `to_entries` to convert the map to an array, then sort/process the array as you like (e.g. using `sort_by`) and convert back to a map using `from_entries`.
+See [here](https://mikefarah.gitbook.io/yq/operators/entries#custom-sort-map-keys) for an example. 
+
 {% hint style="warning" %}
 Note that versions prior to 4.18 require the 'eval/e' command to be specified.