A smear on top of the runners ... perhaps, although - even with the most prolific propolis producers providing purposeful propolisation I have never found the need. But the key words in your post are ..." if they can be directed otherwise "... I try to work with my bees, not direct them as far as is practicable.
In your original response you also suggested that bees up to their knees in petroleum jelly was a less than desirable situation and I agree with your concern ... we should avoid giving the idea that quantities of a product alien to the bees should be smeared in any quantity, for the benefit of the beekeeper, on any part of the interior of the hive.