Is it possible to have in the same rich text editor object editable parts and not editable parts?

Summary:

Content (please ensure you mask any confidential information):

Hello,

We have an object of type rich text editor. We would like the user to be able to modify some sections of it, but to have other sections accessible only in read only mode.

Is that possible?

Regards,

Silvia

Version (include the version you are using, if applicable):

Code Snippet (add any code snippets that support your topic, if applicable):