[LinkedIn] Is it possible to update content data through API?

Question

Hello everyone,

I'm investigating LinkedIn API docs (both legacy and August 2022 version). I would like to find some references to a content updates for ads and campaigns. For example, I've uploaded an image. Also I've created an article with the uploaded file and some post that based on this article. A bit later I decided to update the title of my new article but I am not able to do it though the endpoint which is described here (link). The response is:

   {  
       "serviceErrorCode": 100,  
       "code": "ACCESS_DENIED",  
       "message": "Unpermitted fields present in REQUEST_BODY: Data Processing Exception while processing fields [/patch/$set/content]"  
   }  

Well, it makes sense. Nevertheless, it's available to perform though Content Library page from Campaign Manager site.

Mainly I have two-three questions:

1. Maybe is it possible to do at the moment but I can't find that in docs?
2. If it isn't then is it planning to provide such functionality? (if it's planning then when will it be?)

Thank you in advance!

Best regards,
Roman