All settings are in the "Building Tools" plugin window and sorted by tabs. There are both general settings and unique ones, which are in only one tab.
General settings
Selected Orientation
It determines which axis the asset will rotate relative to the creation surface. For example, it allows you to put the plate sideways. In combination with rotation along the desired axis - you can put them sideways.
Selected Folder Name
All created assets will be placed in this folder. But only if her name is not equal to "None".
Changes the color of the displayed information about the current Building Mode. It also has a checkbox that allows you to disable the output of information.
Changes the color of the Floor Grid.
The Wall Build tab has no unique settings.
Furniture settings
Shift Bound By Normal
Shifts the position of the asset relative to the surface normal so that its bottom edge touches the surface.
Use Grid Size While Attaching
Sometimes furniture needs to be positioned as accurately as possible. For example, pictures that should be at the same height, or lamps, which should also be at the same height.