For a new class:
When you are creating a class, check "Apply Settings"
Select the class you would like to import settings from in the drop-down
All settings (bonuses, store items, jobs, expenses, and fines) will be added to your new class
For an existing class:
Click the settings wheel next to the name of class you would like to import your settings to and select "Import Settings"
Select the class you would like to import settings from in the drop-down
Select the settings you would like to copy over
Please note: Importing settings from another class will overwrite all previous settings in the selected categories
Confirm your selection and enjoy all the time you just saved!