Pie Series Tooltip & Legend questions

Is there any way to either control where the tooltip displays or the z-index so it will display above the items above the chart? Pictured is when I hover over a some of one of the slices on the top half of the pie, it hides under the menu above image

Also, is it possible to allow for the legend to scroll when it exceeds the container height?

You can try setting the z-index via the following selector:

.rz-chart-tooltip {
   z-index: 1000;

The legend should scroll automatically: