The Board Outline Creation Successful dialog provides controls to adjust the board outline's alignment when defining the board shape based on an existing 3D body. DRC checking for the model part also can be disabled and hidden.
The dialog is accessed from the 3D mode of the PCB Editor by clicking Design » Board Shape » Define from 3D body from the main menus then selecting a 3D body on the board.
To align face with top PCB board surface
To align face with bottom PCB board surface
Do not modify model position