You can enter a detailed description of every Code and Class into your Code Archive:
▪Click Start - Observation - Code Archive 
, to open the currently active Code Archive:
The Column Description 
, at the far right, is meant for a description of any Code or Class ever used.
To enter information into the Description field:
▪Select the Code 
or Class 
you want to describe .
▪Click the Edit selected line icon 
in the Code Archive toolbar.
▪Enter your description into the large description field.
A detailed explanation of the various items can be found in the topic Code Archive Editor.