editing rights for certain parts of the document
I need an option to protect some parts of the text in files from editing. Like I share a document with people and this text have parts that can be viewed only but not edited. Something like microsoft has... Thanks.

It is planned in one of the future releases
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Knut Haakon commented
A more appropriate functionality is "Pasted from document: <full path name - URL if is is another server, full path for local, ./ = this><Document file name> opt; position in document.
Microsoft has abused thus to embed codes that involves them in the claims of Intellectual Property Claims - then can demand a share in all US patent filings written in Word. -
Knut Haakon commented
Every "Paste" operations contains a copyright notice from Microsoft.
You must remove this - in all styles - "Paste as text only" . You can provide this functionality by creating a temporary style in CSS: "Comments by ***" as an inherited style (see CSS and virtualisation). And then sow where this style is used, and accepted/rejected. -
LittleLambo commented
Yes, please add it this feature