Hello, Starting with version 10.3 which will be released in less than a month the Author API will allow you to register an Author document listener that can allow or reject any editing action of the Author user depending on your application rules. Do you want to forbid all characters inserted between two para elements, for example forbid also inserting other para elements? Is a validation error not enough if the user inserts some wrong characters? If Validate as you type is enabled the validation error is marked in the document as soon as the wrong characters or elements are inserted: http://www.oxygenxml.com/doc/ug-oxygen/validate-as-you-type.html Regards, Sorin Rogie Isabelle wrote:

Hello,

Is it possible to forbid inserting some characters, between two elements para for example in “Author” mode?

Best Regards,

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**Isabelle Rogie**

Database Chief project

Wolters Kluwer France