Setting the z-value to be used for new features (Production Mapping)
The z-value for new features can be manually defined on the Production Z Management toolbar. This allows you to assign a specific z-value to all the vertices on features you create. As needed, the z-values can be updated using the Populate Z for selected features tool.
Steps:
- Start ArcMap.
 - If necessary, load data in the map.
 - On the main menu, click Customize > Toolbars > Production Editing.
 - On the main menu, click Customize > Toolbars > Production Z Management.
 - 
Click the Production Start Editing button 
 on the Production Editing toolbar.
Note:The Manage Features and Create Attributes, Update Attributes, or Metadata Attributes windows automatically appear when you start an edit session using the Production Start Editing tool.
Tip:If the Create Attributes, Update Attributes, or Metadata Attributes window does not appear when you start an edit session, click the Show/Hide Attributes button
 on the Manage Features window. - 
Double-click the Z text box on the Production Z Management toolbar. 
The current value is highlighted.
 - Type the new z-value to be used in the text box.
 
The value is now set.
6/8/2015