"Collection parameters" for Pre-configured page
Has anybody tried to use "collection parameters" for pre-configured page (the feature implemented in 7.18.1 )?
In documentation it's written "to set up a collection parameter in the page, find the page view model in the [ Configuration ] section by title,
add the “Serializable list of composite values” parameter with the needed sub-parameters to the model, and code the custom business logic."
So i can add a parameter with type "Serializable list of composite values” and then map a collection (for ex, from Read element) to this parameter.
But how then to display this data on pre-configured page or to use it in business logic? Is there any example ?