When creating a report and include items and then placing the report table the values in the table should be fields that can be updated when changing the values on the objects. I have tried it by manually goin and edit the field and inserted a field with element properties and picked the correct item from the element so it should be possible to include that as standard. It could also be made as an option to choose if the table should be a field or static.
When you create a Table from a Report, there is an association option. Doesn't that do what you want?