PC-DMIS allows you to delete existing features in two ways:
You can select features in the Edit window and press the Delete key on your keyboard.
You can use the Delete Features dialog box, discussed below.
Delete Features dialog box
The Delete Features dialog box (Edit | Delete | Features) permanently removes measured, auto, or constructed features from the measurement routine. You should use this option when you want to remove a number of unnecessary features. The Delete Features dialog box only lists those features above the current cursor position in the Edit window.
Select the features to delete, and then click Delete to mark them for deletion. Click OK to delete items marked for deletion.
Search ID - Selects matching features after you press Tab. For more information, see "Search ID".
Select last # - Selects a number of features from the end of the list. For more information, see "Select Last #".
Delete - Marks the selected items for deletion by placing a text fragment of "del" next to selected features in the list. This deletion is not permanent until you click OK.
Undo - Restore all the features that are marked for deletion after clicking Delete. This button does not restore deleted dimensions once you click OK.
When measured features are removed from the Graphic Display window, PC-DMIS automatically removes any dimensions or datums associated with them from the measurement routine.