How to depreciate computer software

The field help for the Description field on screen 4562 (press F1) provides the following guidance:

Computer software can be depreciated in one of several ways:

To carry to line 19, use MACRS - Three years.

To carry to line 42, use AMT - Three years.

To carry to line 16, use SL - Three years.

You must also add /CS at end of the description. (For example, Microsoft Windows/CS)

Note that the /CS in the description must be in capitals.