Use Masking to prevent accidental deletions.
Single
Delete the single entity selected.
Within
Delete all entities inside the rubber-band box.
Intersect
Delete all entities touching and/or inside the rubber-band box.
Visible
Delete everything that appears in the work space.
Duplicate
Delete elements that are the same size and shape and occupy the same space.
See Delete Duplicate Tolerance Options dialog box.
Styles
When you delete a style, all the dimensions on your drawing that are in that style will be deleted from the drawing.
Deleted styles can be undeleted any time during the current session by using the Undelete Last or Undelete All commands, provided you have not created a new style with the same name.
See the Delete Styles dialog box.
Chain
Use the Chain command to delete many elements at one time along a contour that has a number of connected elements.
Click the Chain command. The Select Chain menu is displayed. Use the Select Chain menu to chain the contour from one element to another element.
After you click the Done button, the elements you selected and all the elements between those elements are deleted.
Undelete Last
Repeat this procedure until all elements have been restored. This command is only valid for items that were deleted during the current SURFCAM session, or since a new file was loaded. When SURFCAM is closed, these items cannot be undeleted.
When the layer with the element is set to Hidden, the element will NOT appear on the screen until the layer is set to Visible.
When layers with elements in them have been deleted, all deleted layers will be undeleted before SURFCAM undeletes any of the elements that were on the deleted layers.
Undelete All
Click Undelete All to restore all elements (views, layers, styles, or duplicates) that were previously deleted during the current SURFCAM session.
When the layer with the element is set to Hidden, the element will NOT appear on the screen until the layer is set to Visible.