The Attribute List Management page allows a user to view, add and edit the list values of each attribute per individual data layer. To access the Attribute List Management, head to the Admin Center and head to the Administrative List Management section to the Attribute List Management tab. The Attribute List Management window will allow you to choose a data layer that you wish to access and then each individual attribute from said data layers.
Once you choose an attribute you will be shown the values for each attribute and they will appear in 3 columns. First you have the List Value column that shows what will be displayed in the list. Finally you have the Usage Count column that shows how many times each list value is used. You also have the Sort Value column for attributes that are that will show how the list values will be sorted in the list and Rating columns for attributes such as Condition that have an iTree rating attached to the tree condition values.
