Switching between Polish and English language spellchecker in Pages and Mail on iMac.
I would like to switch between two languages I frequently use English and Polish. There is a very helpful way of switching between the English and Polish input on my iPhone and iPad, and it includes an excellent spellchecker and predictive text in Polish, which I really like, so how can I do the same on iMac? The iMac spellchecker is odd, it has some words in Polish but is really very limited and annoying when switched to Polish it doesn't recognise about 50% of words.
iMac 21.5", 10.13