In Umbraco 13 the BlockGrid is very flexible.
It is simplest to create a custom BlockGrid component. The component can defines any property you can imaginate: media, text, date, number...
And it is possible to create a AngularJS view to preview the component in Backoffice BlockGrid property of the current Content.

But I can't find a method to create a view of custom component with a property of BlockGrid dataType. Because I can't find a Umbraco directive that can render the BlockGrid property value.

I need help prelase.