You can display a grid helper on the floor plane. The grid can be used to position bays and room elements by snapping them on the grid lines and intersections.
This parameter sets the distance between thin lines on the grid. Change the value as needed.
Note: By default, if the measurement unit is set to mm or cm, the grid shows thin lines every 10 cm and thicker lines every 100 cm. If your measurement unit is set to inch, the grid shows thin lines every 10” and thicker lines every 100”. (See Measurement unit.)