The 'Operations' menu allows the user to select the data and to execute the calculs functions. As there are only 8 functions a simple menu is used to call all functions. There is no groups of functions. This use a dynamic help library to allow new topics to be included. Changing the parameters The calculs functions need some parameters to design the drawings.
Some parameters are in common or generally used.
The axis lenght is accessible in the 'Axis options' window. The next part of the interface is functions oriented is not the same in xtms and xcaa. For each functions the parameters that are not used are greyed and insensitive in the next windows . For each analysis, specific question are asked. All questions admit a default answer indicated at the prompt.