A standard arrangement can be made for the library bars with the options from the Standard group. If the Standard option is set to IEC 61346 for library bars, they will only be active when the Standard project mode is also IEC 61346. Library bars must be populated with symbols from the corresponding libraries so that the standard arrangement works. In the case of projects for which the project mode standard is not set to IEC 61346, the library bars which are set to Standard IEC 61346 are hidden and those for which this option is not set are revealed. The standard assignment is independent, for the Destination wiring library bar, for example. This status has the effect of the library bar being independent of the standard project mode of the currently active project, and is therefore visible.