Okura Yusoki A Series Manual page 196

8. Products in cyan grid area (B) are to be laid by a grid division. So the current
central product may be shifted either direction of upward or downward.
Checking [Use half grid division] ON allows the product in cyan grid area to
move by a half grid division to be centered.
A half division laying
The default is a full grid division. If needed, check "Use half grid division"
ON to move products by a half grid division.
13-6
Checking this ON to
change a grid division
to a half one.