To start off, step out of the menu system. You will then see the Total Scope, illustrating the measurement surface. No data should be present on the surface, i.e. no red or green frames or numbers. If there is some data, press the "X" on hte keyboard and follow the instructions to make a new project.
To navigate around in the project, use double-taps on a surface or segment to step into a lower level, and the Back softbutton to navigate up towards to the Total scope.
Now, to start measuring, we will need to go to a segment. Double-tap the Front surface, then segment R1C1 (row 1, column 1).