Originally Posted by LovePrunes

OP:
using Expert flyer, select on the main menu:
AWARDS AND UPGRADES
then your travel dates and cities
Click the box for
Business - Upgrade (Including 2-Cabin Domestic First) (C)
or
First - Upgrade (for 3-cabin flights only) (A)
if you see a number that's greater than 0, you can upgrade that number of seats with miles and copay