How to add chart and summary in new script report maker?

In the new script report maker columns and filters can be easily set from the form and then python script can access filters but no way found to access columns.

I need this because I want to add summary and charts to the report, since I did not find any way to pass summary and chart object in new style, and to use old style it looks like passing columns is a must.

So how can I pass chart and summary objects in the new script report maker?

Warm Regards!