Some time ago we've patched IDEA so that smart completion behaves in a
new way. To be more precisely, it doesn't sort the items
alphabetically, as it did before, but it takes several most relevant
items and places them on top of the list near the preselected most
preferable item. And now it's a bit more convenient to find the needed
lookup element, if, of course, it's included in the top items. Other
items are sorted alphabetically.
To enable this feature, add "sort.lookup.items.by.proximity=true" to
idea.properties. Feedback of two types is appreciated: whether such
ordering is needed at all, and cases where IDEA could be smarter in
determining lookup item relevancy.