The description of these behaviors is termed the mechanism. When scientists are not provided with such a mechanism, then a description of a process, it's explanation, or it's understanding, is questioned. Astrology does not work with mechanisms. It works with relationships, patterns, tendencies, and interpretations. It does not always give a yes or no answer.
I hate the Drawing Canvas and I understand that it's not backward compatible, so I never use it. To turn it off in Word 2002 and above, go to Tools 4 Options, General tab. Untick Automatically create drawing canvas....
Introduction. I hope to offer a substantial amount of information on using Drawing tools in Microsoft Office. I do not cover inserting diagrams or other objects, but just the standard drawing objects. I do not cover the Shadow and 3D tools because these are fairly self-explanatory in that you select an object and choose the tool.