To Erase or Unerase a Table
Deleting a table removes the table entirely. Erasing a table removes the table from the screen, but the table still exists. It is visible as a sub-level to its parents in the Model Tree, and is available for selection and other operations.
Erase Table
1. Select the table.
2. Click 
Erase on the mini toolbar that appears upon selection. The table icon on the Detail Tree appears grayed out, indicating the erased state of the item.
Erase on the mini toolbar that appears upon selection. The table icon on the Detail Tree appears grayed out, indicating the erased state of the item.Unerase Table
In the Detail Tree or in the Model Tree, select the erased table and click 
Unerase on the mini toolbar that appears upon selection. The table is displayed in the graphics window.
Unerase on the mini toolbar that appears upon selection. The table is displayed in the graphics window.