To configure a default printer for use with UPS Direct and / or to set up a default label location, go to the Shipping menu in Shiplark and click on Configure Shipping Providers. Then click on the shipping provider, for which you want to configure settings, in this case, UPS Direct. The same settings can also be accessed by going to File >> Configure store >> Shipping, and then clicking on the relevant shipping provider.
To set the default shipping options for UPS Direct, go to Shipping >> Configure Shipping Providers >> UPS Direct. Once there you can set the printer defaults as required and then click on Configure Default Shipping Rule to access the default settings.
While configuring the default settings remember that if you use International Shipping, you would need to set defaults for that as well.