When checked, PhraseExpander adapts the case of the text to be inserted to the case of the typed abbreviation.
For example, if you have set up a phrase thank you with abbreviation thy, here are the different results you get according to the case of the typed abbreviation.
1.No case change: thy expands to thank you
2.Sentence case: Thy expands to Thank you
3.Uppercase: THY expands to THANK YOU
4.Title case: ThY expands to Thank You
Options 1-4 work with plain text phrases
Options 1-3 work with autocorrects as well