You can add an attribute column to specify model item attributes that are not initially displayed. Columns are always inserted to the right of the column that is selected. If no column is selected, the new column is inserted to the right of the Name column.
Procedure
Click Modeling table if the modeling table is not displayed.
In the table, click the object for which you want to specify attributes.
Click Add or remove columns.
Click Add attribute column. The Add attribute dialog opens.
Select an attribute.
Click OK.
The attribute column is added to the right of the selected column and you can enter an attribute value.