Raduga can display text files with information for the announcer. The contents of the text file is shown in the output window. To display or hide the output window, select View|Output Window from the menu.
You can use Notepad or any other editor that produces plain files to author the text information. Then save the text to a file with a descriptive name. Choose the file extension ".txt".
Text files can be embeddend into the playlist or they can be scheduled as events. If you can't add the text file to the playlist, then you must disable the option "Accept media files only", which is found in the Options|General dialog.