If checked, this option allows the quick entry of recently used Character Names using the TAB key. Press TAB followed by a letter, and the last Character Name you used starting with that letter is highlighted in the pop-up Character Name pop-up list. Press ENTER to enter the name in your document.
For example, you have characters named MICHELLE, LARRY, LISA, and LAURA in your document and the current scene features LAURA and MICHELLE. When you press TAB then L the first time in this scene, the drop-down list might have the name LARRY highlighted. Type A then U to highlight LAURA, then press ENTER to have SmartTab finish entering the name for you.
Without SmartTab enabled, you'll have to do that each time you want LAURA.
With SmartTab enabled, the next time you press TAB then L, the name LAURA is automatically highlighted for you.
NOTE: Without SmartTab enabled, pressing TAB followed by a letter always highlights the first name starting with that letter. If you've added a name starting with that letter to the Character Name User List, the User List name always appears highlighted. See User Lists below.