When importing a list of IP Addresses to scan from the import IP / Hostname list and scan those addresses, and if a host is DEAD, it would be extremely useful if the Hostname (via DNS reverse lookup) and the Bookmark information is still presented, as this data can be obtained even when the host is down. This feature could also be implemented if the "Display dead devices" option is ticked in Program Options. Maybe keep the data greyed to show as offline.
Its already there! Apologies for that, never seen it.
I have done some messing with it, and I find it rather unstable when this is enabled and very slow, getting this error see attached. Also would be better if the dead hosts are greyed out?