# Lock Interface [GstarCAD 2018](Help%20System/GSTARCAD/2018/Index.md) → [User Guide](Help%20System/GSTARCAD/2018/User%20Guide/(User%20Guide).md) → [Additional Pages](Help%20System/GSTARCAD/2018/User%20Guide/Additional%20Pages/(Additional%20Pages).md) ## Lock Interface To create an efficient and comfortable drawing environment, some users like to personalize the software default interface. This function can be used to lock or unlock the position of floating and docked toolbars and windows on the interface.If the screen lock function is activated, GstarCAD users can not move toolbars and windows or change their size. You can it access with: **Menu****:** Windows\>Lock location **Command Entry****:** Lockui **Status bar****:** Toolbar/Window Positions  If you need to unlock windows and toolbars temporarily, you can press the “Ctrl” key and select and drag the locked window or toolbar. See the picture below:  Besides the lock location option, there is another alternative to lock windows and toolbars by selecting the icon (Toolbar/window positions Unlocked) located in the right corner of the status bar. See below:  The command LOCKUI offers alternative values with the same and more locking/unlocking effects: New current value:0 Unlock all floating and docked windows and toolbars New current value:1 Lock docked toolbars New current value:2 Lock docked windows New current value:4 Lock floating toolbars New current value:8 Lock floating windows New current value:15 Lock all floating and docked windows and toolbars Remarks: Under the LOCKUI command, you can customize different locking effects by inputting a summation value, which can not exceed 15\. If you, for example, input the summation value: 7 (1\+2\+4), the docked toolbar, window and the floating toolbar will be locked.  --- Gstarsoft Co.,Ltd ## Other versions with matching text [GstarCAD 2017](../../../2017/User%20Guide/Additional%20Pages/Lock%20Interface.md)