Changes the case of selected text, mtext, attributes, and dimension text.
You can use either the dialog box version or the Command line version of this Express Tool:
Command: TCASE
Select objects: Use a selection method to select textual objects
Command: -TCASE
Select objects: Use a selection method to select textual objects
Select case [Sentence/Lower/Upper/Title/toGgle] <TITLE>: Select an option
tcase.lsp