This is used to save the current state of the landmark. Can be use to save the .LMK files and .MAP files.

Main Menu: Q 0123O IUCRSG NVAMBX DEPL FZH? u
 >u                                                                               

 Current hflag =F

 0. Landmark only
 1. Save map
 q. Quit

0. Landmark only - Will only save the .LMK file. This option is not used often.

1. Save map - Saves the .LMK file and the .MAP file.

Save often!