This means that you have an imaginary plane cutting through the building at an elevation of 4 feet above the floor.
Floor plan section cut.
Therefor you see in the cut anything that the plane passes through.
It displays a list of section views and floor plan views.
A floor plan is the most fundamental architectural diagram a view from above showing the arrangement of spaces in building in the same way as a map but showing the arrangement at a particular level of a building technically it is a horizontal section cut through a building conventionally at four feet one metre and twenty centimetres above floor level showing walls windows.
Selecting the section cut floor plan generate option from the utilities menu brings up the section floor plan views generate view dialog box.
If part of a floor is cut through the floor should appear to be solid instead of showing any lines from the top of the walls on the floor below.
The plan is typically cut at a height of about 4 feet but the architect drawing the plan may cut it at a different height.
It is also called a plan which is a measured plane typically projected at the floor height of 4 ft 1 2 m as opposed to an elevation which is a measured plane projected from the side of a building along its height or a section or cross section where a building is cut along an axis to reveal the interior structure.
If you have not setup any views before choosing this option the dialog box will be empty.