In the following, Tog rates the importance of consistency as it applies to certain parts of the overall interface. This list is ordered from those interface elements demanding the most faithful consistency effort to those demanding the least. It may or may not appear in your version of Word. Which is exactly what is wrong with invisible objects and why consistency is so important. The appearance of such objects needs to be strictly controlled if people are not to spend half their time trying to figure out how to scroll or how to print.
Location is only just slightly less important than appearance.
Where it makes sense to standardize location, do so. The most important consistency is consistency with user expectations. This simple truth is why it is so important for everyone involved in a software project to appreciate the importance of making user productivity goal one and to understand the vital difference between building an efficient system and empowering an efficient user. This truth is also key to the need for close and constant cooperation, communication, and conspiracy between engineers and human interface designers if this goal is to be achieved. Interface designers should try to simplify these tasks for the user, thus leading to greater true productivity.