I reckon that you are trying to run and understand the Quadcopter Project example which can be found in the documentation of the Aerospace Blockset and wish to understand the usage of the “asbTrajectoryTool”. I assume that you are using version R2023b of MATLAB.
“asbTrajectoryTool” is a trajectory generation tool which uses the Dubin method. For detailed instructions on the usage of the tool, you can refer to the highlighted section of the documentation page here: https://www.mathworks.com/help/aeroblks/quadcopter-project.html#:~:text=include%20this%20model.-,Trajectory%20generation,-A%20trajectory%20generation
