Clicking on Series in a Sentry Dashboard Graph Hides the Series instead of Drilling in

### Problem Statement In a given graph, clicking on a series hides it from the graph instead of showing the series you want to focus on. I believe this is counter intuitive because you want to focus on a series when you click on it. Other graphing services like grafana behave like this as well. ### Solution Brainstorm Change the behavior from clicking and hiding a series to clicking to drill down into a series. Also support shift + click behavior on multiple series to select a group of them. ### Product Area Dashboards