Secondary sort by title for thoughts of the same priority

This applies to sorting by priority (but could be for other sort types, like e.g. Due Days, essentially any sort order that is not strict, but sorts the items into equivalent "groups"). It would be nice if there would be an implicit (or maybe configurable) secondary sort for the items of the same priority according to Title.

Currently, for those thoughts that have the same priority, the items are in arbitrary (creation date?) order, but since similar titles usually signify related items, would be useful if even the items within the same priority group would be sorted.