Flionogeusch41 It can’t be changed back tp the old version. Multiple selection is possible by By clicking on the desired addresses and pressing Ctrl+Shift at the same time, this can be done without any problems. When I type the first letter of an e-mail to which I wrote already The whole adress appears, also for those I got a mail already. It is possible to check which adresses are already collected in the contact section an then “collected adresses” (see picture below).
By they there was more often the wish that no more use adresses no more appear, associated with the question, who to delete them and this is now much easier than before.
At least I can say that the new layout has neither improved nor worsened my life.