How to get the properties of a non-current page?

Question

1C-Bitrix

Good afternoon friends.
Pages have a custom property. How can I get it from the menu component for each page?
Something is quite stuck here.
Thank you!
UPD: property - analogue of meta (keywords, description), is set for a physical page. These page properties are called by the GetPageProperty() method. And there are no problems.
There is also a menu component (bitrix:menu) that displays these very physical pages.
The challenge is to get this property for each page in the menu.

Answer 1

I think it’s just not possible to collect everything at once, at least I can’t say on the fly. Banal ideas come to mind to create an HL \ infoblock and simply display it in the menu in result_modifier.php, and to set these properties for the page, you can use events like OnAfterEpilog \ OnEpilog, see about loading the page here