I collect coins. Unsurprisingly my main focus is UK coins as that's where I'm from. But I am a keen collector of world coins too, and enjoy visiting my map. But the colours are heavily skewed - I have catalogued 2468 coins to date, 472 from the UK and around 2000 from the rest of the world. I have not yet recorded my UK crowns, double florins, halfcrowns, florins, shillings, sixpences, threepences and more.
By the time I have done so I will have a map that is of two colours, red for UK and light blue for everything else. If I could exclude UK I would have a really good indication of the balance of my world collection excluding the main focus.
Would it be possible to have an option to exclude one ore more countries from the display?
You could split your collection in two collections. One UK and one Worldcoins.
You mostlikely have to use the "One line per coin in my collection, with coin values" setting for this.
For example here are my Worldcoin and Doubles collections: