midnight commander : how to invoke drop down on directory history list

I use mc 4.1.36 (C) ported to windows(I use Vista). I would love to be able to navigate through the list of directories that I've previously visited using the drop-down except that I don't know how to invoke it. This version of mc i use does not have support for mouse. So, what is the KEY that will invoke this drop-down behavior ? Years ago, by accident, I invoked it but I forgot to document it.

I don't have the version you have but on V4.5 the manual says the keys are

M-y
    Moves to the previous directory in the history, equivalent to depressing the '<' with the mouse. 
M-u
    Moves to the next directory in the history, equivalent to depressing the '>' with the mouse. 
M-S-h, M-H
    Displays the directory history, equivalent to depressing the 'v' with the mouse. 

http://www.chm.tu-dresden.de/edv/mc/mc4.5/manual1.html#7