Documents how to change the default security index (#4695)

* First draft

* incorporates feedback

* Update docs/getting-started/data-views-in-sec.asciidoc

Co-authored-by: Nastasha Solomon <[email protected]>

* Update docs/getting-started/data-views-in-sec.asciidoc

Co-authored-by: Nastasha Solomon <[email protected]>

---------

Co-authored-by: Nastasha Solomon <[email protected]>
(cherry picked from commit 225f3c8)

docs/getting-started/data-views-in-sec.asciidoc

@@ -18,14 +18,17 @@ image::images/dataview-button-highlighted.png[image highlighting how to open the
 [discrete]
 == Create or modify a {data-source}
 
-You can temporarily modify the active {data-source} from the *{data-source-cap}* menu by clicking *Advanced options*, then adding or removing index patterns.
+To learn how to modify the default **Security Default Data View**, refer to <<update-sec-indices, Update default {elastic-sec} indices>>.
+
+To learn how to modify, create, or delete another {data-source} refer to {apm-app-ref}/data-views.html[{kib} {data-sources-cap}].
+
+You can also temporarily modify the active {data-source} from the *{data-source-cap}* menu by clicking *Advanced options*, then adding or removing index patterns.
 
 image::images/dataview-filter-example.gif[video showing how to filter the active data view]
 
 This only allows you to add index patterns that match indices that currently contain data (other index patterns are unavailable). Note that any changes made are saved in the current browser window and won't persist if you open a new tab.
 
-To permanently modify a {data-source}, delete an existing {data-source} or create a new one, you need the required permissions.
-To learn more, refer to {apm-app-ref}/data-views.html[{kib} {data-sources-cap}].
+NOTE: You cannot update the data view for the Alerts page. It always shows data from `.alerts-security.alerts-default`.
 
 [discrete]
 [[default-data-view-security]]