Changing the page-up & page-down resolution
This is only used on the ignition grid.
You can select the amount of degrees the system increments or decrements each time you press the page-up/down key.
Selecting 0.2 on the resolution selection box will cause each page-up/down key press to change the timing value by 0.2 degrees. If 2.0 degrees is selected then each press will cause a change of 2 degrees.