***Text to filter world cities layer so only the 10 biggest megacities by 2030 are showing 
(if the tilde above the 'a' character in São Paulo doesn't appear correctly when you view this in your web browser, you can copy and paste it from here: 

https://en.wikipedia.org/wiki/S%C3%A3o_Paulo - the Wikipedia page for the city

"city" IN ('Kinshasa','São Paulo','Delhi','Tokyo','Mexico City','Shanghai','Beijing','Cairo','Mumbai','Dhaka') AND  "population" >= 5000000


***Text to filter world countries layer so that only those countries with one of the biggest megacities by 2030 is showing (as well as turning off Antarctica):

NOT "SOVEREIGNT" = 'Antarctica' AND "GEOUNIT" IN ('Mexico','Brazil','Democratic Republic of the Congo','India','Egypt','Bangladesh','China','Japan')


***Text to turn off Antarctica with a filter, on world countries layer:

 NOT "SOVEREIGNT" = 'Antarctica'
 
 
 
***The text below can be used as a filter on the atlas_2_world_cities_natranks layer to hide some and show others - otherwise it's really cluttered!
 
  NOT "city" IN ('Lanús','Callao','Klang','Shah Alam','Petaling Jaya','Birstall','Depok','Tangerang','Bekasi')  AND "CITYRANK" <= 10 AND "population" >= 250000 OR "capital" = 'primary'