I will never use it coz i don't thing it is important in anyway but now a days u can see multiple language support in every application & we have to make Mikrotik UM all rounder & 1 of the best.
but you can implement it later i would request you to implement mac binding, session search date wise, CSV file template, actual profile dropdown in advance search, auto sms & emails.
I remember once i have asked girts to change Shared users default to 1 & it was done in next release but after girts left none of my request fullfilled. The development of UM is very slow they have just implemented payment system in 2 months & bugs r not yet fixed. I'm nomore interested involving in this i hardly visit forum coz there is no one to listen here.