One screen for each resource you chase during an incident.
The Resources group in the sidebar has a screen for CPU, Memory, Disk, Disk I/O, Sessions, Connections, Waits, Network and Backups. Each one lets you pick a server and a time range (for example, Last 24 hours) and shows the data points collected in that range. A tab row at the top lets you hop between resources without going back to the sidebar.