Reverse Search

Hi,

i thought maybe this is a useful idea. Is it possible to get a function to serch for items which have no tag.

For example i install an update or a new software on a server. Now i tag this server Update04/19.
If i search for Update04/19 i get all connection which have that tag. But what i really want to see are the connections or servers which dont have this tag, so that i know i have to install the update.

is this possible to implement?

thx Boris