Students did their photography exam blindfolded. They were told the conditions, e.g. dark, sun from the left, shadow, etc. and then told to take the photograph. They had to know their camera and how to use it while blindfolded - fluidly.
That is how one would expect CAT learners to know and use the Office suite of applications. They should know when to use and how to use the available applications to solve a problem. This requires many activities and exploration of the packages, and use and use and more use in open ended situations until they become fluid. We must help our learners reach that level of competence.