This feature is available in Enhanced Asset Management.
A multiple asset account is made up of a group of assets that are similar. One depreciation total is sent to Form 4562 for the entire group of assets. You can add to or remove assets from the group. The basis of the entire group will recalculate based on the individual assets (called units) in the group. To activate a multiple asset account, check the box that appears in the Asset Information pane. The Multiple Asset Account check box will not be active until certain minimal information has been entered for that asset.
The asset with this check box selected becomes the main asset under which units reside.
Multiple Asset Account check box
To add a multiple asset account, use the following steps:
Multiple Asset Account Setup dialog box
In this dialog, the description and units are the only editable fields. Any other changes should be made in the asset information.
Multiple Asset Account - Units dialog box
Select the check box next to the Remove Unit header to select all assets.
Once a multiple asset account has been setup, use the following steps to view and/or edit the mass asset.
Multiple Asset Account dialog box
Multiple Asset Account Setup dialog box