The bottom part of the window contains two check boxes that control the Redundant Backsights option. The first check box enables or disables redundant backsights. If this option is checked, redundant backsight information can be entered into the survey. The second check box enables or disables Corrected Backsights.
Unit Page. The second page of the window allows you to set the units for each measurement. All of the possible Units for each type measurement in a shot are displayed within its own box. To select a unit of measure, just click the mouse the units of your choice.
LRUD Association. This item controls whether the LRUDs are associated with the From Station or To Station when building passage models.
Saving Default Settings. The Units and sequence settings can be saved and used as default for creating new surveys. These default values can only be set using the "Options | Default Settings" item on the menu bar. For more information about saving settings, click here