Hi,
I'm not clear what you really need. You mentioned you can add news in the two webparts which seems like a html editor and the webpart display different contents, does the content come from database and the user and modify the content and update it? If so, you can write different query statements in each webpart and write a shared update method with a parameter to identify the different updating request from each webpart.
Thanks.
Sincerely,
Michael Jin.
Microsoft Online Community Support
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