Ens.Host, Ens.ContextSearch and drop-down property editors

These two articles describe how to extend business components with additional properties:

1. https://community.intersystems.com/post/how-customize-ensemble-settings

2. https://community.intersystems.com/post/creating-custom-captions-intero…

I have one more question about drop-down editor. Is it possible to pass to its URL the value of another business component property, not just @productionId? Something like: 

class MyOperation extends (EnsLib.REST.Operation, Ens.Host)

{

Property MyProperty as %String;

Property MyAnotherProperty as %String;

Parameter SETTINGS = "MyProperty:Connection:selector?context={My.Namespace.ContextSearch/SomeSearchMethod?productionName=@productionId&myAnotherPropertyValue=..MyAnotherProperty}"

}