The diagram below shows how the configuration information directly affects the layout of the grid on the main jLogBook screen.
The grid configuration properties are also best understood by way of examples.
Look at the Stream configuration in the diagram above. Note that
Grid: is set True so this category is displayed in the Grid.
Column Position in Grid is set to 5 and it is shown in the fifth column in the grid.
Grid Column Pct Width is set to 5%. This will force the width of this column to 5% of the total grid width. If it had been set to zero, then it would have auto-sized on the caption or the value of the category. (See Message example below.)
Grid Display Format is set to String so no additional formatting of the information will be carried out.
Grid Merge Cells is set to "True" so rows that are identical (i.e. in value and in color) will be merged.
Fixed: is set to "True" so the category "Stream" is shown in the main window. If this had been set "False", (and the column number was higher than the last column with a Fixed property) then the operator would have to use the scroll bars to view the category. This is the case for the categories Console, Shift, AmPm, LogDateTime and Site, which are located on the far right of the grid and in this view are not visible.
Color: is set true so the fields are colored and in this case, their color will be set according to the value of the Area category (See Color Category above).
The configuration
information for the category Message is shown below. 
Note that
Grid: Is set True so it is displayed in the Grid.
Column Position in Grid is set to 7 and it is shown in the seventh column in the grid.
Grid Column Pct Width is set to 20%. This is a special case as "Message" is the "Fill In Column" as defined in the system configuration screen. See the diagram in section 4.1above. In this case, the 20% is disregarded and the column will expand to fill as much space as is possible with the current sizing of the grid.
Grid Display Format is set to None so the Message will not be formatted any further.
Grid Merge Cells is set to "False" so rows that are identical will not be merged.
Fixed is set to "True" so the category "Message" is shown in the main window. If this had been set "False", (and the column number was higher than the last column with a Fixed property) then the operator would have to use the scroll bars to view the category.
Storage Format is set to TEXT so a field will have been created that will accommodate up to 4000 characters of text information.
Color is set True so the colors will be as suggested by the "Color Category" (in this case, it is the category "Priority" as defined in the Color Category field in the last row of the grid.)
Note that in the above example, we have used the DOW, LogDate and Logtime fields instead of the composite LogDateTime Field in the grid. This gives a much more readable format since we can merge the DOW and LogDate cells and show clearly when there is a start of a new day. The LogDate category is a DateTime field which is formatted using the formatting string %d %b, %y so that it looks like 15 Oct, 03say. For more details on the formatting possibilities, see the section 16.1below.
Note that we have set the color category for Tm to be Shift. In this way, we have used the color coding of the shifts (Shift 1 is yellow, Shift 2 is Brown and Shift 3 is gray) to highlight the changes in shift on the Tm field. In this case, there was a shift change at 7:30 am so the Tm color changes from Gray (Shift 3) to Yellow (Shift 1) at this time.