Functions of communication software: After opening the software, pay attention to the function "Tools" in the upper row and click it. After clicking, there is a "toolbar" in the pop-up options bar. Click to view. Ok, it will appear when you look at your toolbar. Finally, click adopt, and it would be better to praise it again. There is a layout toolbar above the first interface of the new address book, which I can delete. How to get it back ... right-click at the top of the interface, and there is usually an option, whether to view the project list or restore the default work interface.