How to add/open calculator and rtf file in Bank Mode?

Computer crashed and after reformat and OS reinstall and Avast Free (paid version expired during the reconstruction project which was terrible) Bank Mode no longer allows me to open up a calculator and an rtf file as it used to. When I clip the + sign at the bottom left of bank mode the only files that can be opened are .exe file, NOT what I would want in the middle of Bank Mode.

https://forum.avast.com/index.php?board=78.0