Aaargh!. I've somehow managed to reduce my advanced view to three columns and would like to get back to four. After about a half hour of fruitless searching for an answer, I am empty-handed. I bet somebody out there knows; could I get a hand please please?
Answer found a few moments ago! But thanks for helpful boost, I appreciate it.
Had to resort to That Other Search Engine, sadly, but finally tracked it down in a forum somewhere.