bulletLog selection is by quadrangle name and base map scale. The list buttons showing the state and quadrangle are one of the two ways to select a quadrangle.
bulletThe Log ID number boxes (shown with 1 and 10) allow you to select as many logs as your wish, subject to your computers' memory limits. If you don't remember the drill hole number, searches can be made using the drill hole ID tag assigned when the log was input.
bulletThe project code is used for project processing. Projects allow you to keep the original log intact, then change the project log to meet requirements of the task.
bulletThe remainder of the controls shown allow you to take a selection of logs and "save" the selection for use later. In this way, if you have a series of logs you will use time after time during a session, you can save the selection and save typing!