# Behavior Viewer<no value>
The **Behavior Viewer** window is used to view *any* [model behaviour XML](../../../../../content-configuration/models/modelbehaviors/model-behaviors/) file, regardless of the package that is currently being inspected in the [Behaviors Debug](../../behaviors-debug-window/) window. The viewer will normally open automatically when you open the Behaviors Debug window however, if it is closed it can be re-opened from the [`Behavior Viewer`](../../behaviors-debug-window/#behavior-viewer) button in the main debug window.

{{< image-center
    src="images/2_DevMode/menus/tools/behavior_debug/viewer/viewer_1_main.png"
    alt="The Behavior Viewer Window When First Opened" >}}

Once open, you will need to go to the **File** menu and select a behavior file to view. Once opened the window will change to show a number of additional tabs, as well as an **Edit** menu and an **Options** menu.

{{< image-center
    src="images/2_DevMode/menus/tools/behavior_debug/viewer/viewer_2_loaded.png"
    alt="The Behavior Viewer Window When First Opened" >}}


-   ##### Edit

    {{< image-center
        src="images/2_DevMode/menus/tools/behavior_debug/viewer/viewer_3_editmenu.png"
        alt="The Behavior Viewer Edit Menu" >}}

    The options here are as follows:

    -   **Compile** - Selecting this option will trigger a (re-)compile of the selected behavior file. Note that if the file belongs to the current aircraft, then this option will *not* rebuild the aircraft package, meaning any changes made to the selected file will not persist. You will need to rebuild the package to see any changes.

    -   **Abort On Error** - When checked, this will abort the (re-)compilation if there are any errors. Disabling this will allow the file (re-)compilation to continue and attempt to generate some partial results even though there have been errors.


-   ##### Options

    {{< image-center
        src="images/2_DevMode/menus/tools/behavior_debug/viewer/viewer_4_optionsmenu.png"
        alt="The Behavior Viewer Edit Menu" >}}

    Here you can select an **interaction model**, which can be one of the following:

    -   **Lock** - This uses the Microsoft Flight Simulator 2024 interaction model which can handle a variety of peripherals (controllers, keyboard, joystick, etc...).

    -   **Legacy** - This uses the *legacy* interaction model, which is exclusively checking for interactions with the mouse.

 

The following tabs shown in this window are the exact same as those shown in the [Behaviors Debug](../behaviors-debug-window/) window:

- [Components](../behavior-tabs/#components)  
- [Animations](../behavior-tabs/#animations)  
- [Mouserects](../behavior-tabs/#mouserects)  
- [Material](../behavior-tabs/#material)  
- [Visibility](../behavior-tabs/#visibility)  
- [Updates](../behavior-tabs/#updates)  
- [VFX](../behavior-tabs/#vfx)  
- [Input Events](../behavior-tabs/#inputevents)  
- [Variables](../behavior-tabs/#variables)  
- [Tooltips](../behavior-tabs/#tooltips)

 

In addition, there is the **Log** tab and the **Parameters** tab, which are both explained in detail below.


### Logs

{{< image-center
    src="images/2_DevMode/menus/tools/behavior_debug/viewer/viewer_6_logs_1.png"
    alt="The Log Tab In The Viewer" >}}

The top of this tab is taken up with the filter options for the list of logged information. You have a **Clear All** {{< image-icon src="images/2_DevMode/menus/tools/behavior_debug/viewer/viewer_10_clear_icon.png" alt="The Clear All Button Icon">}} button, a **Copy** {{< image-icon src="images/2_DevMode/menus/tools/behavior_debug/viewer/viewer_9_copy_icon.png" alt="The Copy Button Icon">}} button, and then 4 buttons to control the level of information shown:

-   **Verbose**: contains all the logs classified as being secondary, not very informational but useful in some instances
-   **Info**: contains logs about the status of a requested action, such as the compilation success, etc...
-   **Warning**: contains logs about an issue which doesn't require an immediate action but should be considered nonetheless
-   **Error**: contains logs reporting an error, such as compilation failure, etc...

Beside these buttons you can find the **Settings** {{< image-icon src="images/2_DevMode/menus/tools/behavior_debug/viewer/viewer_8_settings_icon.png" alt="The Settings Button Icon">}}, and clicking on this will give you the following option:

-   **Clear On Compile**: When this is checked (which is the default) the console will be cleared every time you (re-)compile the current behavior file.

Finally you have the **filter** input, where you can supply a string to filter the logs listed in the main part of the tab, which you can clear using the {{< button "Clear" />}} button beside the filter. It should be noted that you can **right-click** on any logged event in the window to bring up a small window containing the full message with text wrapping (making it easier to read long logs), and any important secondary information will also be shown in this sub-window. You can even copy this using the **Copy** {{< image-icon src="images/2_DevMode/menus/tools/behavior_debug/viewer/viewer_9_copy_icon.png" alt="The Copy Button Icon">}} button at the top of the window.

{{< image-center
    src="images/2_DevMode/menus/tools/behavior_debug/viewer/viewer_7_rmberror.png"
    alt="The RMB Details View For A Logged Event" >}}


### Parameters

{{< image-center
    src="images/2_DevMode/menus/tools/behavior_debug/viewer/viewer_5_parameters_1.png"
    alt="The Parameters Tab In The Viewer" >}}

The parameters tab shows all the parameters defined in the currently loaded model behavor file. This list is colour coded and can be filtered either by *category* or by *name* using the input fields at the top of the tab. The colour coding used for parameters is as follows:

 

-   **White**: This the default and denotes a parameter created in place within a given scope.  

    {{< image-center
        src="images/2_DevMode/menus/tools/behavior_debug/viewer/viewer_5_parameters_5.png"
        alt="Example Of The Parameter Scope Pop-Up" >}}

 

-   **Grey**: This is the value of the parameter.  

    {{< image-center
        src="images/2_DevMode/menus/tools/behavior_debug/viewer/viewer_5_parameters_6.png"
        alt="Example Of The Parameter Scope Pop-Up" >}}

 

-   **Orange**: These entries correspond to the different parameter *scopes*. To see what type of scope the parameter name refers to, you can hover the mouse over it:

    {{< image-center
        src="images/2_DevMode/menus/tools/behavior_debug/viewer/viewer_5_parameters_2.png"
        alt="Example Of The Parameter Scope Pop-Up" >}}

 

-   **Magenta**: This is for a parameter which has been saved in the corresponding scope, and will only ever be visible inside of `<SaveParameters>` scopes.
    <img src="" class="center" />
    {{< image-center
        src="images/2_DevMode/menus/tools/behavior_debug/viewer/viewer_5_parameters_4.png"
        alt="Example Of A Save Parameter" >}}
 

-   **Red**: This is a parameter which has been loaded from a save.
    <img src="" class="center" />
    {{< image-center
        src="images/2_DevMode/menus/tools/behavior_debug/viewer/viewer_5_parameters_7.png"
        alt="Example Of A Loaded Parameter" >}}
 

-   **Green**: This denotes a parameter returned by a `<ParametersFn>`.
    ![](images/2_DevMode/menus/tools/behavior_debug/viewer/viewer_5_parameters_3.png)
    {{< image-center
        src="images/2_DevMode/menus/tools/behavior_debug/viewer/viewer_5_parameters_2.png"
        alt="Example Of Parameter Function Returned Parameter" >}}