Storing the map in the current map document
The Storage tab on the Map Series Properties dialog box offers two types of storage options: in the current map document or as individual map documents. Choosing the Current Map Document option allows you to store the map sheet in the current, single .mxd file.
Steps:
- Start ArcMap.
- On the main menu, click Customize > Toolbars > MPS Atlas.
- Click the MPS Atlas window button  on the MPS Atlas toolbar. on the MPS Atlas toolbar.The MPS Atlas window appears. 
- 
Right-click the map series on the MPS Atlas window and click Map Series Properties.
The Map Series Properties dialog box appears. 
- 
Click the Storage tab.
The Storage tab appears.  
- Click the Current Map Document option.
- Click OK.
4/17/2012