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Specify or change the home node
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The home node is the CI that all other CIs on the map are associated with, directly or indirectly. The home node icon has a thicker border that pulsates. The map is redrawn when you specify a home node.
Use either of the following methods:
- Use the **Search** box to find and select a CI.
- Select and hold \(or right-click\) a node on the map and select **Set as home node**.
**Note:** Connecting lines between nodes represent relationships and references, not data flow.
- In the vertical layout, the home node appears at the center of CI connections. Upstream connections appear at the top and downstream at the bottom. This is the default layout for displaying mapped service instances \(formerly application services\) \[cmdb\_ci\_service\_discovered\].
- In the force layout, the home node appears at the center of CI connections.
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Reload the map after a change
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Select the Reload map icon \[Omitted image "icon-um-reload-map.png"\]
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Configure a filter to display only pertinent items
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Select the Filter icon \[Omitted image "icon-um-filter.png"\]
When a user applies a shared preset or a user preset, all filter settings are overridden. Filter attributes from a shared preset or a user preset that don't apply to the current map are listed in the **Unused filter attributes** section of the filter panel. The order of filter-setting precedence from the various sources is as follows:
1. user presets
2. shared presets
3. shared presets that are defined in a **Unified Map shared presets** profile
4. class profile \(Class profiles contain only layer settings and are defined in the **Node Map Profiles** related list.\)
**Note:** Filter settings that would filter out the home node might appear in the list. You can't, however, filter out the home node even if it meets filter settings.
For more information, see [Use filters to specify which nodes should appear on a map](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/australia/markdown/australia/servicenow-platform/unified-map/unified-map-configure-filters.md).
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Show/hide filtered items
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Select the Show/Hide filtered items icon \[Omitted image "icon-um-show-hide-filtered-items.png"\] to expose the filtered items on the map as dimmed view-only nodes.
For more information, see [Use filters to specify which nodes should appear on a map](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/australia/markdown/australia/servicenow-platform/unified-map/unified-map-configure-filters.md).
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Show complete CI details
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Select a CI \(CI border thickens\) to display its details in the **Overview**, **Attributes**, **Service instances**,**Related items**, or **Changes** panel.
For group CIs, such as a service instanceor a dynamic CI group, the **Attributes** panel also shows detail cards for the CIs that are members of the group.
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Show relationship details
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Two CIs might be connected by one or more relationships \(stored in the CI Relationship \[cmdb\_rel\_ci\] table\). For example, two CIs might be connected by the **Runs On::Runs**, **Depends On::Discovered From**, and by the **Owned By::Owns** relationships.
- A solid line indicates a relationship. The arrowhead indicates the dependent node.
- A dashed line indicates a reference.
- A badge on a line indicates the number of relationships between the CIs.
Select a connection to display its attributes in the **Attributes** panel. For a CI with multiple relationships, select the badge to view details for all relationships.
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Set the number of relationship levels to display on the map
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Use the **Levels** drop-down list to specify how many relationship levels to display on the map \(default 3\). A low setting is useful for viewing a simplified map that shows only direct connections and for limiting the overall size of a map. A higher setting enables you to review more complex CMDB structures.
When a mapped application service \(service instance\) CI is set as the home node, the **Levels** setting has no effect and all levels of relationships appear.
**Note:** Connecting lines between nodes represent relationships and references, not data flow.
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Highlight the relationships between CIs
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Point to a CI to animate the connections between CIs. Connected nodes are highlighted for a few seconds.
Two CIs might be connected by one or more relationships \(stored in the CI Relationship \[cmdb\_rel\_ci\] table\). For example, two CIs might be connected by the **Runs On::Runs**, **Depends On::Discovered From**, and by the **Owned By::Owns** relationships.
- A solid line indicates a relationship. The arrowhead indicates the dependent node.
- A dashed line indicates a reference.
- A badge on a line indicates the number of relationships between the CIs.
**Note:** Connecting lines between nodes represent relationships and references, not data flow.
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View mapped application services \(service instances\)
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The Service Mapping app might use mapped application services. Mapped application services appear as group CIs that you can expand to show members. Mapped application services \[cmdb\_ci\_service\_discovered\] are descendents of the Service Instance \[cmdb\_ci\_service\_auto\] class, such as service instances and dynamic CI groups.
- A badge shows the number of members in the group.
- Select the badge to expand the group and show its member CIs. Select again to collapse.
- In the expanded mode, move to any member CI to temporarily highlight all group members.
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Show or hide the timeline
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Select the Show/Hide timeline icon \[Omitted image "icon-um-toggle-timeline.png"\]. For more information, see [Viewing related items on the Unified Map timeline](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/australia/markdown/australia/servicenow-platform/unified-map/unified-map-timeline-working-on.md).
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View non-operational CIs
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- Non-operational CIs do not appear in search results or on the map.
- The **Open Map** button on a CI form isn't available for non-operational CIs.
- Only CIs for which the **Life Cycle Stage** attribute is **Operational** or empty appear on maps.
An administrator can change the default behavior to show non-operational CIs or CIs of any combination of **Life Cycle Stage** values. For more information, see [Configure CIs to appear based on life cycle stage value](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/australia/markdown/australia/servicenow-platform/unified-map/unified-map-confg-operational-state.md).
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