edit: after thinking about #54, does your menu use number keys or the scroll wheel? I never thought of using the scroll wheel until seeing your menu, as it seems more fitting (fancy navigation for a fancy menu.) like when you scroll through the options it selects the one you're highlighting by putting a > infront of it.
I used the number keys for mine, but I think that it would be possible to use the mwheeldown and mwheelup key bind to scroll through the menus by rebinding them each time you move down the menu.
As for the >> indicator, I think that would take loads of effort to rewrite all the echos for each individual option, but sure it's probably possible.