In the old view you could paste in several issue keys/numbers (separated by whitespace) into the link text box, and it would link them all to a single ticket. The new view doesn't allow you to do that. I get an error saying the it can't find the issue with the given key.
How do you do this in the new view? It will be very tedious to have to link 100 issues to one ticket one at a time. For now I will just switch back to the old view to do this.