First - Multi Commander is pretty impressive.
I keep trying new replacements for the standard Windows Explorer and I look for multi-window and favorites functionality which I miss in Explorer.
That said, I don't know how you use Multi Commander, but I tend to jump to folders using favorites (currently use Filebox on Explorer). I did not find it very intuitive to use the Favorites on Multi Commander (but I can get used to it). Can you please add a Favorites Bar plugin.
Merry Christmas and a very Happy New Year!