I would like to create a visualization that displays hostnames on the y axis, and time on the x axis. This graph would display events in the form of dots (hopefully customizable by color or shape) that correspond to events (startup, shutdown, etc). Finally if possible, when hovering the mouse over the events, a small popup with custom data would appear that are part of the same event (version, servicename, etc). Is this possible to create? What type of graph is this? Is there an example somewhere that shows how to do this?