Use DDselect command to change autocad cursor pickbox size.
More Video Tutorial
AutoCAD 3D House Modeling: https://www.youtube.com/watch?v=FERNTAh5s0I
AutoCAD Convert 2D Into 3D: https://www.youtube.com/watch?v=0PlkEJF0IdQ
AutoCAD Tutorial Playlist: https://www.youtube.com/playlist?list=PLjyiWW2QlmFwXcacgfcrwHWU2jNMYd37C
Post time: Jun-17-2017