If the option Check spelling as you type is enabled, spelling is checked as the text is typed, and the spell check dialog box will open automatically when an unknown word is typed.
Note: When you enter a calculation into a cell, its spelling will not be checked. This would not make sense with calculation formulas.
To enable this on-the-fly spell checking, choose the command File | Options 
, switch to the Language tab and activate the option Check spelling as you type.
Now, every time you type a word, PlanMaker quickly looks up that word in its dictionaries. As long as you type words that the spell check knows, nothing visible happens. But if you type an unknown word, the spell check displays a dialog box.
This dialog box is similar to the dialog box for the manual spell check, presented in the previous section. You can read there about how to use this dialog box.
You will notice that there is also a SmartText button in the dialog box. This is for creating a SmartText entry from the word. You will learn more about this feature in the section SmartText.