* @tree_store: A #GtkTreeStore
* @iter: (out) (allow-none): An unset #GtkTreeIter to set the new row, or %NULL.
* @parent: (allow-none): A valid #GtkTreeIter, or %NULL
- * @position: position to insert the new row
+ * @position: position to insert the new row, or -1 to append after existing rows
* @...: pairs of column number and value, terminated with -1
*
* Creates a new row at @position. @iter will be changed to point to this
- * new row. If @position is larger than the number of rows on the list, then
+ * new row. If @position is -1, or larger than the number of rows on the list, then
* the new row will be appended to the list. The row will be filled with
* the values given to this function.
*