I collect coins one coin per type and trying to visit local coin dealer every weekend. As collection grows, its harder track coins that need a replacement or specific variety I'm interested in. At the dealer's store, I have Numista website opened on my phone and I if I'm not sure whether I have a particular coin or not I do a search by country + date. The problem is that there are those green indicators that coin is in the collection, but there is no quick way to tell if I need a replacement due to its grade or damage. The proposal is to add some sort of parameter/option/setting that will indicate that particular type of coin needs attention or replacement. Such parameter has to be placed somewhere in the search results output, this way user won't need to open the page of each coin, scroll and look whether coin required an upgrade or not.