Set a drop-down box's default value if do search for returns one result

Is there a way to set a drop-down box’s default value if the do a search for returns only one result?

Put the dropdown in a group and name it something you can find, then do the “When condion is true” workflow, pick “Everytime” and do [your search]:count is 1, then your action will be “Reset a group/popup” and pick your group containing the dropdown.

If it’s a repeating group you can just reference [repeating group]'s list of [things]:count is 1