Release: Actifsource V11.0.0
It should be possible to define DerivedProperty (DerivedRelation and DerivedAttribute).
The DerivedProperty is a relation calculated at runtime, which cannot be edited via the editor.
However, it can be used in the same way as a self-defined relation.
E.g. in the templates:
The performance of the runtime calculation is set via the properties.
Advanced:
Of course it is also possible (DerivedAttribute) to select a TemplateFunction via the DerivedAttributeAspect.
Of course, the derived properties are also supported by Ant generation.
There is an example project on GitHub: