layers

[gints]

it would be good if it could be separated - a layer for the entire document and a layer for specific pages.
currently, to change the language in the entire document, I am forced to do it on every page

[MikeTO]

2 hours ago, gints said:

it would be good if it could be separated - a layer for the entire document and a layer for specific pages.
currently, to change the language in the entire document, I am forced to do it on every page

Hi and welcome to the forums. Are you asking about the language of text? Language is a character-level attribute - you can change the language for any range of text.

To change your default so that the language is the same for every text object on every page, create a new document, draw a text frame, change the language with the Character panel > Language setting, and then choose Edit > Defaults > Save. Every text object you create from this point on will default to that language. You can override this at any time of course.

Cheers

[Oufti]

Or if you use Text styles, you could choose a language for each style and change it globally when you want. 

https://affinity.help/publisher/English.lproj/pages/Text/textStyles.html 

[fde101]

I believe it is rather obvious that the OP is asking for the "global layers" feature that has previously been discussed at length in other threads (making this one redundant).  The lack of this feature seems to me like one of the most blatantly obvious major shortcomings of Publisher in particular.