Epic 5.1 and Xml Schema

Hello everyone,

I'm currently working with Epic editor 5.1 and for a new project I have to work with Schema but it seems that Epic 5.1 is not able to parse XML file using schema (I tried with a version 5.2 and it works).

Could someone confirm that it is not possible to work with XML Schema on Epic 5.1 and I need to upgrade my licence or is there any configuration, manipulation or anything else to do.

Many thanks,

Christophe