I just realised I use this functionality a lot and thought that others might not know it was possible.
Highlight a lower case bit of text in the SQL editor window of SSMS and press CTRL+SHIFT+U and the text will go to upper case (L for lower case).
This is handy when someone else has written a SQL script with GP field names in lower case as I’m so used to them in upper, it speeds up my reading to make them upper.
This is just an example. You may also highlight the whole script and make it upper case or individual lines, the above GIF is just showing the principle. In this particular case it would be quicker to have made the whole lot upper case then go back and lower case the table aliases.