Improve the flexibility and placement of exterior labels. For example, allow the user to specify the preferred label placement.
This issues is migrated from the wishlist HTML page at https://graphviz.org/doc/todo.html.
Git blame shows this is from 2014:
620a8b3427 (Emden R. Gansner 2014-01-30 15:21:11 -0500 74) Improve the flexibility and placement of exterior labels. For example, allow the user to specify the preferred label
620a8b3427 (Emden R. Gansner 2014-01-30 15:21:11 -0500 75) placement.
xlabel
specifies external labels: https://graphviz.org/doc/info/attrs.html#d:xlabel. Seems like there's no way to specify if the external label is, for example, above or below, right or left of the node.