# 4.3 Project screens menu

Screen previewThis section introduces project screen menu functions, the project menu as following picture shows.

![](https://3950998874-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2Fpi-series-user-manual%2F-Lupl5Z3989tpwzdQBQe%2F-LuplJXHBTzTiRZ0Oh9e%2F18.png?generation=1575007637314158\&alt=media)

**This section consists of following contents:**

[Project manager](#4-3-1-project-manager)

[Screen preview](#4-3-2-screen-preview)

[Project compiling window](#4-3-3-compile-window)

### 4.3.1 Project manager

**Introduction**

Project manager includes screen, script and system screen states, by double click the designated property to edit.

**Description**

1\) Screen: all screens in current project are shown in the screen list.

2\) Script: include global script and global function.

* Background script: The scripts could run when project is running;
* Background function: Background function is a form of code for using, it could be called in any script.

3\) System screen: system sub-screen for keypad display.

* Screen 1000: numerical input keypad
* Screen 1001: text input keypad
* Screen 1002: mutual screen, this screen will display on all other screens
* Screen 1003: user login screen
* Screen 1006: user login screen, include user name and password input
* Screen 1007: password change screen
* Screen 1008: installment payment password input screen
* Screen 1009: installment payment alert screen
* Screen 5001: timeout list
* Screen 5002: Prompt message
* Screen 5003: Format U\_Disk

4\) Screen editing: Choose the designated screen, then edit the parts and properties on this area.

### 4.3.2 Screen preview

**Introduction**

Preview could display the selected screen.

![](https://3950998874-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2Fpi-series-user-manual%2F-Lupl5Z3989tpwzdQBQe%2F-LuplJXIudMPxaSjCUTm%2F19.png?generation=1575007637311397\&alt=media)

### 4.3.3 Compile window

**Introduction**

\[Compile window] shows project compiling information, when an error occurs, it appears in a red font to make it easier for the user to notice the error information, and when double-clicking the error message, it automatically locates errors.

![](https://3950998874-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-Lup_3URExwDkfqKABSb%2F-LuprKC57GbnVcPqOpNs%2F-LupuWLnazHToR4b_QZy%2Fimage.png?alt=media\&token=df847f89-bfbd-4212-8911-3052c06e9827)