Summary Panel
If not otherwise configured the summary panel will automatically be based according to the global Summary Panel settings or the Summary Panel space settings.
Individual work item configuration can be completed from any Summary Panel in any work item view. Click on the ESU cog icon to configure this Summary Panel.
Any configurations at this level will only appear on the specific work item that you are customizing. All configurations at this level will override ANY other configuration.
For configuration options of progress bars, you can have a look at this page.