A computer apparatus includes i) a graphical user interface with a first command interface area for inputting and displaying cryptic commands for the definition of a search request and a form-based second command interface area having fields for displaying parameters of the search request, and ii) a coupling part for coupling the first and the second command interface areas such that the input of cryptic commands generates a pseudo-simultaneous display of parameters reflecting at least some of the cryptic commands, the elements for coupling including elements for parsing the cryptic commands, program instructions for extracting structured data from the cryptic commands, elements for storing the structured data within JavaScript objects, and program instructions for filling fields of the second command interface area by mapping the structured data.