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The zones that you add to an MPC project for zonal and L/HIRF analyses are arranged in a tree-based structural configuration called the zonal-L/HIRF hierarchy. To access the configuration, click the Zonal-L/HIRF Hierarchy tab on the System panel.
In the Zonal-L/HIRF Hierarchy, there can be no more than three levels in the hierarchy (major zone, major sub-zone and zone), and the first two levels must be selected from a predefined list of major zones and major sub-zones that are stored in the database (and can be managed by an authorized user).
Each zone has properties associated with it, which are viewed and edited on the Properties tab of the Analysis panel when the zone is selected in the hierarchy.
The following columns are displayed in the zonal-L/HIRF hierarchy:
Zone # displays the zone number. This will be assigned automatically for major zones and major sub-zones. For zones, you can select an acceptable number from the drop-down list.
Description displays the name and/or description of the zone.
Status Updates displays
if a status
update record has been created for the item.
Attachment displays
a paper clip icon 
if one or more files have been attached
to the corresponding item. It displays 
if a Description and Operation
(D&O) document has been attached to the file, either alone
or with other attachments.
Flag displays a flag for the item, if desired. The available flags are: Complete (indicated by a green flag), In Progress (indicated by a yellow flag) and Incomplete (indicated by a red flag). This flag is displayed in the interface only and does not affect reports.
User Access displays an icon when the item is inaccessible. (See Status Indicators.)
If the item is in use by another user, an in use icon 
will be displayed. Point to the in-use icon to display the name
of the user who is accessing the item.
If you do not have the item
permissions needed to edit the item, a restricted access icon
will be displayed.
Standard Zonal Analysis
displays 
if
a standard zonal analysis has been created for the zone.
Enhanced Zonal Analysis
displays 
if
an enhanced zonal analysis has been created for the zone.
L/HIRF Analysis displays
if a lightning/high
intensity radiated field (L/HIRF) analysis has been created for the
zone.
For compliance with the ATA numbering guidelines, the available major zones and major sub-zones have been predefined for the database. Note that an authorized user can modify the names in the Manage Major Zones window, but the numbering system requires the major zones to be numbered 100 to 900 and the major sub-zones to be numbered X10 to X90 (i.e., 110 to 190, 210 to 290, etc.).
To add a new major zone, choose Zones > Add > Add Major Zone(s).
To add a new major sub-zone, select the major zone and then choose Zones > Add > Add Major Sub-Zone(s).
Both command open windows that display the list of major zones/major sub-zones that have been predefined for this database. Use the check boxes to select one or more items to add to the zonal hierarchy and click OK.
Note that each major zone/sub-zone can be used only once per project. So if a zone/sub-zone already exists in the current hierarchy, the text will be grayed out and you will not be able to select it.
Zones have not been predefined for the database. Instead, you have the flexibility to create these records as needed for your particular analysis.
To add a new zone, select a major sub-zone and choose Zones > Add > Add Zone.
Because of the ATA numbering guidelines, you cannot add more than 9 zones for the same major sub-zone. For example, if the major zone number is 100 and the major sub-zone is 110, you can add zones with any of the following numbers: 111, 112, 113, 114, 115, 116, 117, 118 or 119.
To delete an item from any MPC hierarchy, select the hierarchy item and press DELETE. The hierarchy item will be deleted, along with all dependents and all associated attachments. There is no undo for deleting an item or the entire hierarchy.
You can cut or copy items in any MPC hierarchy and paste them to the same project or to another project within the same database. (Please note that if you want to share hierarchy items between different databases, you must use the import/export functionality instead.) To select multiple hierarchy items for cut or copy:
Click the first hierarchy item and then press CTRL and click additional hierarchy items at the same level of the hierarchy.
or
Click the first hierarchy item, then press SHIFT and click another hierarchy item to select all hierarchy items at the same level of the hierarchy between and including the two.
After you select the hierarchy items, you can use the standard keyboard shortcuts for cut/copy (CTRL+X and CTRL+C) or you can choose Home > Clipboard > Cut and Home > Clipboard > Copy. When a hierarchy item is cut or copied, all dependents will also be cut or copied, along with any attachments.
To paste items that you have cut or copied from any MPC hierarchy, press CTRL+V or choose Home > Clipboard > Paste. Note the following:
For the top two levels in the hierarchy (i.e., systems/subsystems, structures/substructures or major zones/major sub-zones), each item can be used only once per project. If an item with the same number already exists within the project you are pasting to, you will be prompted to decide if you want to replace the existing hierarchy item or cancel.
If a hierarchy item is cut or copied but then deleted from the project, the copied data will also be deleted from the Clipboard. In addition, once a hierarchy item has been cut or copied, any edits that are made to the original will also be applied to its copy in the Clipboard. In other words, if there are changes to the original hierarchy items after you cut/copy them but before you paste them somewhere else, this will affect the data that can be pasted. Also note that you will not be able to cut or copy a hierarchy item in a project that is locked by another user.
It is easy to import any entire hierarchy (or selected items) from any project in the same database or another selected database. (See Importing MPC Hierarchies Between Projects.)
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