please stardock. Windows quick access menu in explorer is rubbish.
All we need is a horizontal bar: if you don't want to implement a favorites bar like this...

Please will you consider putting your groups where they can be accessed with one click, not 3 steps (one of which involves thinking - ie finding the right menu item to hover over). Having the favorites there all the time makes muscle memory do the work: vastly more effecient than memory.

Please please please! I have researched this functionality and you have to replace explorer to get anywhere close!
Failing that, please will you consider making a separate menu for the groups so they can be accessed with hover>click!