I still do not have this functionality. It only lets me add to a new list when I import, not an existing list.
Another feature lost is you no longer can add contacts to a static list directly inside the static list. It is SO cumbersome to have to go to each person’s contact record to add them to a static list. You should be able to add them directly when you are inside of the list. I am going to add another thread about this.
We’ve been customers for over 3 years and it’s getting harder and harder to do basic marketing functions inside of HubSpot.