In the quicksearch snapin you can now enter the following syntax
h:firsthost h:otherhost h:testhost
The quicksearch dropdown will show the matches for the given names (case insensitive, no exact match).
If you want an exact hostname match you need to finish the name with $.
When you press enter a host search formular will show up with the hosts given in the quicksearch field.
In the quicksearch dropdown you can mix hostnames and ipaddresses - they will both show up in the dropdown. However, the search formular is only able to display either one or the other.