Omron NB-series Operation Manual page 332

3 Functions of NB-Designer
System Scroll Bar Width: Refers to the component with the scroll bar such as operation log
component. The width of the scroll bar can be set with this option and the
width range is from 20 to 120 pixel point. When the spacing is 4 (i.e. 20, 24,
28 and so on), the scroll bar can be displayed effectively.
3-290 NB-series Programmable Terminals NB-Designer Operation Manual(V106)