How in TeXShop (2.43) under MacTeX 2010 do I enable LaTeX-aware spell-checking -- preferably real-time, too.
By default, I see many LaTeX mark-up commands underlined as misspelled. For example, \documentclass, \usepackage, \infty. They should be recognized as OK.
I know that Excalibur is installed as part of MacTeX, and that Excalibur has a preference setting to parse LaTeX commands. But how do I get Excalibur to work in conjunction with TeXShop?
(I must be spoiled, as most of my prior TeX experience is with WinEdt under Windows. There the spell-checking all works "out of the box". As you type source, the spell-checker flags misspelled word.)