In v.5 was function to assign label to any object. Labels very useful and I do not see it on L6.
Multilabels would be very veery useful - it’s irreplacable feature for users with multiple languages. It’s annoying when you type “сркщьу” instead of “chrome” and Vice versa.
Also labels add alternative names for same links and make possible to categorize them.
Same thing with search rules. Adding alternative keywords (e.g. youtube) ‘yt’, ‘не’, ‘ют’ for searching EN and other languages without changing keyboard layout.
I think that is not hard to implement and make using much enjoyable.