These commands are all preceded by pressing DO and followed by pressing RETURN .
This command centres the current line between the left and right margins.
This command converts all selected text to lower case. If text has not been selected, then the current word is converted and the cursor moved to the next word.
This command converts all selected text to upper case. If text has not been selected, then the current word is converted and the cursor moved to the next word.
This command capitalise the first character of all the words in selected text. If text has not been selected, then the current word is converted and the cursor moved to the next word.