Under 'Preferences for this project' on your account page you can set up 4 different preferences: default, work, home & school.
Just pick one (other than default) and choose only AP26 work units.
Then under 'Computers on this account' you can view them, select 'Details' for that specific machine and change the 'Location' drop down to the preference you setup.
Best of luck,
35 x 2^3587843+1 is prime!