DB Cleanup for one site?

[Tok]

Hi,

when i add a new site with new switches and the router does not work or is forgotten to enter i do not get any ip-addresses and hostnames for the enduser devices (understandable).

But when i later add a router i do get double entries for every port with "Show: Most Recent". One entry includes end device ip and hostname, the other not. I have to select a concrete date to get rid of this, or to do a complete DB cleanup by removing all scan results.

Is there a possibility to remove all scan results for a single site?
A fix for the "Show: Most Recent" would also be good.