How to link two reports on same dashboard together? Interactive dashboard ?

How to link two reports on same dashboard together? Interactive dashboard ?

Hello!

Q. 1) For example, i have dashboard with pie chart and bar chart. I want to click on slice on pie chart and refresh simultaneously bar chart. 

Q. 2) Is there any way to create custom click handlers on reports areas ? For example i don't want to open new drill-down window with underlying data by click, i want to do something different, is it possible ?