XHTML string property values

I am doing an extensive use of property values through the PVMT add-on. While generating documentation gathering information from the properties associated to a Capella element it would be useful to define some properties as XHTML and benefit of the embedded rich text editor. I know that this could be done externally and copy the XHTML text in the standard string property, but it would be much easier with an integrated functionality, in the same way it is supported for the requirement text in the Requirements add-on.