updating extend explorer internal documentation out of the feedback f…

…rom adding gitopssets (#3283)

* updating extend explorer internal documentation out of the feedback from adding gitopssets

* updated with integration test info

* updated tests section

docs/extending-explorer.md

@@ -13,8 +13,19 @@ Things to know:
 ## Adding a new Object Kind
 
 1. Add a new entry in the [`SupportedObjectKinds`](https://github.com/weaveworks/weave-gitops-enterprise/blob/253256c16c777b0d488ca0ba8068b8f80b1b4c07/pkg/query/configuration/objectkind.go#L119) slice
-2. Add an [RBAC entry](https://github.com/weaveworks/weave-gitops-enterprise/blob/9101b60a487e1f999b4e988e9ca27bdde4ac7538/charts/mccp/templates/clusters-service/collector.yaml#L13) to WeGO ServiceAccount for your kind
+2. Add a entry to [`ToFluxObject`](https://github.com/weaveworks/weave-gitops-enterprise/blob/f36d549b6010afbd3c086c4955637586629ec589/pkg/query/configuration/objectkind.go#L284) as will be required 
+for [Status and Message](https://github.com/weaveworks/weave-gitops-enterprise/blob/f36d549b6010afbd3c086c4955637586629ec589/pkg/query/internal/models/object.go#L113C1-L129)
+3. Add an [RBAC entry](https://github.com/weaveworks/weave-gitops-enterprise/blob/9101b60a487e1f999b4e988e9ca27bdde4ac7538/charts/mccp/templates/clusters-service/collector.yaml#L13) to WeGO ServiceAccount for your kind
 
+## Using the default Explorer UI component
+
+If you would like to use default Explorer view with your Kind:
+
+1. Add your Kind details Route to [`getKindRoute`](https://github.com/weaveworks/weave-gitops-enterprise/blob/f36d549b6010afbd3c086c4955637586629ec589/ui-cra/src/utils/nav.ts#L3)
+2. Add a test case for your kind in the [integration test](https://github.com/weaveworks/weave-gitops-enterprise/blob/main/pkg/query/server/server_integration_test.go#L44)
+   - Add any CRDs to [testdata/crds](../pkg/query/server/testdata/crds)
+   - Add the GV to [`AddToScheme`](../pkg/query/server/suite_test.go) to register the GVK.
+
 ## Using the Explorer UI component
 
 If you would like to view your object list in a dedicated table: