Schema Compliance Assertion - property expansion

Hi

I'm pretty sure that in previous versions of Soap UI (somewhere around ReadyApi 2.4.0) it was possible to define Schema Compliance Assertion dynamically using property expansion, like:

${#Project#service_address}/some.service?wsdl

Judging by this I'm not mistaken, it worked in the past:

https://community.smartbear.com/t5/API-Functional-Security-Testing/Schema-Compliance/m-p/7315

It looks like with SoapUI 5.6.0 it is not possible anymore or something changed in the way it should be used. So the first question is: is it not possible in that version?

I see I'm not the first one stumbling upon it:

https://community.smartbear.com/t5/SoapUI-Open-Source/Dynamic-Schema-Compliance-Assertions/m-p/40934

I've tried this solution via groovy:

https://community.smartbear.com/t5/SoapUI-Open-Source/Schema-Compliance-Assertion-setting-Definition-URL-with-Groovy/m-p/136565#M23261

Somehow it doesn't work for me as expected. It changes url only after closing and opening project again. Which is contrary to the purpose of it - being dynamically changed during execution.

So, to reiterate:

1. is it possible to use property expansion in Schema Compliance Assertion?

2. if not, how to change url in this assertion dynamically during test execution?

Regards

Jarek