Technically the only thing you’re allowed to fiddle with, while driving, is what you can operate from the steering wheel. You’re not supposed to fiddle with radio, AC etc. from the center console while driving even if it’s physical buttons.
I know people don’t drive like this, but you’re only allowed to take your hands off the steering wheel for changing gears if driving a manual, otherwise it’s two hands on there at all times…technically
Blender is not CAD software though, it’s 3D modelling software. They’re not quite the same thing, and they’re intended for (and excel at) different things.