Flagging duplicate records for a day as not duplicates

For the AT220s we have started entering the possums and unspecified as separate records. Can there be a process to flag these records from appearing on the duplicate record report?

Also on a recent check, I caught two cats in a SA2. The second cat was caught 3 minutes after the first and recorded 8 minutes after the first record.

We do get a reasonable number of duplicate records throughout the month that need to be removed however it would be nice to be able to remove these from the duplicates report.