Changing Stereotype between MDG Technologies

[BruceTOGAF2]

I have 2 MDG Technologies "Data Architecture" and "Defra Data Architecture MVP".  Both MDGs contain a stereotype "Conceptual Data Entity" that are different from each other.
I have an element with FQStereotype "Data Architecture::Conceptual Data Entity" because it was created from a stereotype "Conceptual Data Entity" defined in a MDG Technology "Data Architecture"
StereotypeEx does not differentiate "Conceptual Data Entity" ("Data Architecture") from "Conceptual Data Entity" ("Defra Data Architecture MVP").
I want to change the stereotype of this element so that it has the stereotype "Conceptual Data Entity" defined in MDG Technology "Defra Data Architecture MVP".
The following Jscript code tries to change the FQStereotype to "Defra Data Architecture MVP::Conceptual Data Entity"
currentElement.FQStereotype = "Defra Data Architecture MVP::Conceptual Data Entity";
EA responds with "Unable to write read-only property"
How can I change the stereotype of the same element so that it has the stereotype "Conceptual Data Entity" defined in MDG Technology "Defra Data Architecture MVP"?

[qwerty]

As answered in your dup-post: stereotypeEx is the field where to put that.

q.

[Uffe]

As Q says, you need to update StereotypeEx. FQStereotype is a convenience read-only property.

However, there is no way to distinguish two stereotypes with the same name from profiles with the same name from different technologies.
The result is undefined.

/Uffe

[Sunshine]

StereotypeEx does not differentiate "Conceptual Data Entity" ("Data Architecture") from "Conceptual Data Entity" ("Defra Data Architecture MVP").

Yes it does you need to prefix with MDG.
i.e. try
StereotypeEx = "Defra Data Architecture MVP::Conceptual Data Entity";

[BruceTOGAF2]

Thank you querty, Uffe and Sunshine. Your solution works well.