# The User Interface [GstarCAD 2018](Help%20System/GSTARCAD/2018/Index.md) → [User Guide](Help%20System/GSTARCAD/2018/User%20Guide/(User%20Guide).md) [Toolbars and Menus](Help%20System/GSTARCAD/2018/User%20Guide/The%20User%20Interface/Toolbars%20and%20Menus.md "菜单、工具栏和工具选项板") The frequently used commands, settings and modes can be visited via the toolbar and the menu. [The Command Window](Help%20System/GSTARCAD/2018/User%20Guide/The%20User%20Interface/The%20Command%20Window.md "命令窗口") The command window is a dockable and resizable window, where you can display commands, system variables, options, messages and prompts. [Design Center](Help%20System/GSTARCAD/2018/User%20Guide/The%20User%20Interface/DesignCenter.md "设计中心") In the Design Center, you can manage layer definitions, block references, xrefs and other contents like layouts and text styles. [Customize the Drawing Environment](Help%20System/GSTARCAD/2018/User%20Guide/The%20User%20Interface/Customize%20the%20Drawing%20Environment.md "自定义图形环境") You can customize the many elements of the working environment to fit your needs. [Tool Palettes](Help%20System/GSTARCAD/2018/User%20Guide/The%20User%20Interface/Tool%20Palettes.md "定点设备") Tool palettes are tabbed areas within the Tool Palettes window and they can be used to organize, share and place blocks. --- ## Other versions with matching text [GstarCAD 2017](../../2017/User%20Guide/The%20User%20Interface.md) · [GstarCAD 2019](Help%20System/GSTARCAD/2019/User%20Guide/The%20User%20Interface.md) · [GstarCAD 2020](Help%20System/GSTARCAD/2020/User%20Guide/The%20User%20Interface.md) · [GstarCAD 2021](Help%20System/GSTARCAD/2021/User%20Guide/The%20User%20Interface.md)