Converting an all-caps string to u&l text

[wdc]

Is there a command (something like Shift + F3, perhaps) that will convert a marked string of all-cap text to u and l case text? Thanks. ...wdc

[RoryOF]

/Format /Change case offers a number of options. Sentence case is probably what you want; remember to check that the conversion is as you would wish.

[floris v]

Make sure that the text sits in its own paragraph because there was or is a bug that applies the case change to the paragraph with the selected text instead of just the selection.