PP9.0 Update/Refresh non scriptable chart preserving data connection

Hello,

I have a challenge for you.

I have a protocole that generate charts with data connector. These charts are a bar chart (categorical), a pie chart. They are linked together with and with a data table via a data connector.

What I want to do is to refresh the chart changing the CATEGORY PROPERTY. For instance, the picture of the new pie chart must replace the old picture and must have the same "data connection interactivity".

In PP8.0, these charts were implemented in Flash. I t was possible for me to generate xml string data through a protocol function and refresh data within these charts.

It's not possible anymore.

Thank you if you have a simple way to do this in PP9.0.