These are the steps to create a custom dashboard or Report:
1). Go in the right hand under Actions │ General │ Create dashboard...
or
Go in the right hand under Actions │ General │ Reports... │ Create a New Report
2). Choose "Use All Data"
3). Give a name for the Dashboard, then click Next and choose "Three-Column Layout"
4). Then click "Finish" and then Cancel.
This will create the Dashboard.
5). Go back in the right hand to Actions │ Data │ VMware │
6). Drag and Drop "VMware Virtual Machines", and choose "Create a table.."
7). If creating the Dashboard use these fields (Click on "show all", then choose the following fields):
/host/name
/uptimePercent/period/average
8).You can change the labels of those fields this way:
Hostname
Host Uptime Percent