A computer-implemented method for selecting one or more functions for display is provided. The selection may be performed via an implementation guide that is a hierarchy comprising nodes. A node may represent one function. The method may comprise retrieving a first list of switches in response to selection of a function, extracting one or more switches from the first list such that the extracted switches include function switches and/or conflict switches, determining whether each of the extracted switch is an active conflict switch and, if yes, adding the active conflict switch to a second list of switches. After removing all switches from the first list or having added all of them to the second list, the method processes the second list to determine which functions can be executed on the processor without conflicts and presenting a function GUI element representing a function determined to be executable without conflicts.