Why is it that some drawings show that cube thingy and other drawings dont? Well here is how to control both the “cube thingy” (ViewCube) and the Navigation Bar (NB) that sits just below the View Cube (VC).
The Navigation Bar and ViewCube also show up when a viewport is activated (double-clicked) in Paper Space.
To control the display of these tools in a View Port or in Model Space the method is the same. Just make sure that the the setting will only affect the current space (model or view port)
A possible configuration is to have the ViewCube be available in the Navigation Bar. This happens by default when you turn off the ViewCube. Notice in the picture below that the top button in the Navigation Bar is a toggle that quickly turns on the ViewCube.
The System Variable for these tools are shown below:
ViewCube System Variable = NAVVCUBDISPLAY
I don’t know how my current value is a negative one. Please notice however that this system variable is saved in the drawing. That is why it might be displayed in one drawing and not displayed in another.
Navigation Bar System Variable = NAVBARDISPLAY
Notice that this system variable is saved in your computer’s registry and will display the same (on or off) in any drawing you open.