To Remove Columns from the Model Tree
1. On the Model Tree, click 
and then click Tree Columns on the list. The Model Tree Columns dialog box opens.
and then click Tree Columns on the list. The Model Tree Columns dialog box opens.2. Under Displayed, select the column you want to remove and click 
.
.3. Repeat step 2 for each column you want removed from the Model Tree.
4. Click > .