pictures selection question

[nikos_bo]

Hi all, I'm new in using AllDup.
I have a question about pictures selection: I've done a search of duplicated pictures and found some groups of files with 100% match, and others with lower % match.
First step I'd like to do is to delete files where I have 100% match in every group, keeping one of files, but if I select files with match score 100%, all files with 100% are selected. It's not useful, because also 1 file in groups where there is not 100% match for all files is selected.
I would need an option in deletion phase such as "Keep one file in every group where match score is 100% for all files".

Any suggestion?