1) We will not likely add this to the wizard any time soon. You are able to fully update the recordset results and create your own custom recordset after the wizard runs. Just open the data page with dreamweaver and edit the recordset with dreamweaver.
1- We use a component called "open flash charts" it is open source and anyone who knows flash and actionscript should be able to add that feature. We don't plan on updating or working on the chart features in future versions. Our approch will likely be to target and implement new charting solutions in future versions. It is possible that we will target a charting solution that offers this feature.
2- If you copy and paste the recordset from the data page of the chart onto your page that displays the chart, you can add a report by using that recordset and standard Dreamweaver repeat regions. I have done this quite a few times and it works well. Just because the wizard doesn't do it for you doesn't mean that it can't be done.