Spell Check
Spell-check and thesaurus are incompatible with Windows 8.1, 10, and Server 2012 R2, and have been disabled in versions of Clinical prior to 3.17.1
F7 (via Letter Writer)
Edit > Spell Check (via Letter Writer)
Overview
To conduct a spelling check of an open letter in Letter Writer, either;
Click 
Select Edit > Spell Check
Press F7
An automated spelling check commences, and if any questionable spelling is discovered, the Spelling Check window appears.

Choose from the following actions:
If the selected instance of the word is correct i.e. does not need to be corrected.
If every instance of the word is correct i.e. do not need to be corrected.
To add the word to the
To change the selected word to one suggested by the dictionary. You can also simply double-click the correct word from the suggestions provided.
To change every instance of the selected word to one suggested by the dictionary during this spell-check.
To indicate which if the
To edit the