Circles on Subtabs – These indicate that the sub-tab has data to show and can save you from looking for information on empty tabs.

Underlined Letters – NetSuite supports keyboard shortcuts or hot keys with the use of your Alt button like Windows Explorer. For example, in the image above, hold down the Alt+S keys to go to the Sales tab or hold down Alt+I keys to jump to the Emails subtab.

As an exception, the letter G will not be underlined on any tabs/ subtabs as this takes your cursor to the Global Search page.