NOBU Web Interface is Poor

I can search for all files older than a certain date, but can only select ONE page of the results at a time. If I move to the next page, the first page is deselected. If I click Purge, the selected files are purged, but then I have to go back and do the search again, select only ONE page, click purge, etc. This is stupid.

I need to delete all backed up files over a certain age without simply purging all files. This currently isn't possible without hours of picking one page at a time or, if it is, please tell me how.