I suppose your requirement is to get selected rows from List Page and perform some action on them right:::::::::
I think you can use @RequestParameter for this case.
Go througn tuorial for @RequestParameter you will have clear view.
My original post contains 2 questions.
1. How to enable DataModelSelection across multiple rows populated using the EntityQuery framework (all the samples seem to operate only on a single row)
2. How to perform any action (e.g. deletion or activation) on the selected entities. @RequestParameter provides a mechanism to capture a single entity, not sure how to mimic the same for multiple entries.
Appreciate any input on this topic.