Adding overrides to fields in a dashboard

Administrators or editors can add overrides in panel visualizations. These overrides supersede the default settings to fetch and display specific information across BMC Helix applications.

Use overrides to view or analyze information in a customized format or to eliminate irrelevant data in your dashboard panel or reports.

The following override types are available:

Override	Description
Fields with name	Fetches data based on fields with a name. For example, panel title, panel data with names and values.
Fields with name matching regex	Fetches data based on a regular expression. For example, /.*/
Fields with type	Fetches data based on specific field types. For example, number, string, or a boolean expression.
Fields returned by query	Fetches data based on a specific query type. For example, Metric, Events, Service Management, and so on.
Fields with values	Fetches data for fields with reducer conditions. For example, all zeros, mean, variance, or standard deviation, and so on.

To add an override

In the Edit panel screen, select the Overrides tab.
Click Add field override.
Select the required override type.
Select the panel field for which you want to apply the override.
Click Add override property to perform the required operation on the selected panel field.
Click Apply and then click Save.
Refresh the panel.

For information about how to configure and use each override, see Override examples.

To delete an override

Click Delete for the corresponding override.
Click Apply and then click Save.
Refresh the panel.

Examples of overrides

The following examples demonstrate how to use overrides to apply specific properties to columns.

To change the width of a column by using the Fields with name override

This section shows how to change the width property of the source_hostname.keyword column to 60 by using the Fields with name override.

Click Add field override.
Select Fields with name.
From the Fields with name list, select source_hostname.keyword.
Click Add override property.
Select Column width and enter 60.
The width of the specified column becomes 60.

To hide a column by using Fields with name matching regex override

This section shows how to hide the Count column by using the Fields with name override.

Click Add field override.
Select Fields with name matching regex.
In the Fields with name matching regex field, enter /^Cou.*/.
Click Add override property.
Select Hide in table and click the Hide in table toggle key.
The Count column is hidden as it contains the text cou.

To change the display name of the string columns by using Fields with type override

The section demonstrates how to change the display name property of all the string table columns by using the Fields with type override.

Click Add field override.
Select Fields with type.
From the Fields with type list, select String.
Click Add override property.
Select Standard options > Display name and enter Unavailable.
All the string table columns are renamed Unavailable.

To change the column alignment of the columns by using the Fields returned by query override

This section demonstrates how to change the alignment property of all the columns by using the Fields returned by query override.

Click Add field override.
Select Fields returned by query.
From the Fields returned by query list, select Query A.
Click Add override property.
Select Column alignment and then select Right.
All the columns are aligned to the right.

To hide the columns by using the Fields with value override

This section demonstrates how to hide the columns with values greater than or equal to 5 by using the Fields with value override.

Click Add field override.
Select Fields with values.
From the Fields with values list, select Max and enter 5.
Click Add override property.
Select Hide in table and click the Hide in table toggle key.
The Count column is hidden.