Adding and removing events in the Live view
During data capture, add or remove events in the interactive counters panel in the Capture Control view.
To select events and add them to the Live view, do one of the following actions:
Select an event, then click Add selected events
.Double-click the event.
Select an event, then press Enter.
Drag an event onto the chart panel.
To remove events from the Live view, do one of the following actions:
Select an event, then click Remove selected events
.Select an event, then press Delete.
Remove the chart or series.
Note
Removing a chart or series only removes the counter if no other chart or series is using it.
Drag and drop a chart into the interactive counters panel.
When you have finished configuring the Live view charts, you can update the view:
To save the current counter configuration and restart the capture with the new configuration, click Save and restart
.Note
If you have selected the Discard data option in the Capture Settings dialog box, this button is inactive and appears grayed out. When the capture session terminates, Streamline discards the data.
To discard the current capture and restart with the new configuration, click Restart capture
.
Changes to the counter configuration also occur when you:
Edit a series expression, counters are automatically added or removed.
Switch and manage templates
.Add default charts
.
Setting event-based sampling
If an event supports event-based sampling, Toggle event-based sampling 
appears before the event name in the interactive counters panel.
To enable or disable event-based sampling for an event, click Toggle event-based sampling . Set the reporting threshold in the Threshold field that appears at the bottom of the interactive counters panel when event-based sampling is enabled.
Other user indicators
A gray warning triangle next to the series title indicates event charts that have been configured but not committed.
A red triangle next to the series title indicates that there are no available counters for the chart.
Hovering over an event in the interactive counters panel highlights any series that is using it.
Hovering over a series or chart title highlights any events in the interactive counters panel that it is using.
Not all events are linked to the charts. Dynamic counters, like atrace, can only be configured using the counters panel, not using the charts. A double arrow in the category heading indicates linked categories.