If you already know during project planning which PLC parts are to be used, you can insert the PLC cards and connection points directly as a device (menu items: Insert > Device). This way you can place the individual I/O connections, card power supplies, bus ports, etc. comfortably one after another. In this context the function definition is now displayed additionally as a placement aid at the symbol and the plug designation additionally at bus ports. You can use the [N] key to "browse" through the functions.