# Application Editor Overview
The Application Editor is Fuse's visual drag-and-drop interface for building powerful voice applications. The following outlines the Application Editor's key features.
## Revisions
When saving an application, users have the ability to save the current state as a unique revision.\
It is possible to then edit or clone specific revisions of an application.
The top will show the current revision of the application currently being edited.\
Clicking on the revision (
) icon opens a menu with a list of past revisions.\
To change the name of a revision, click in the text field and enter the desired name. Click the purple check button to apply the change. Click on the edit (
) icon to edit the name of an older revision. Click on the open (
) icon to open an older revision and make changes to the call-flow.
## Pages
In order to more easily manage applications, Fuse allows users to break up a call-flow into its component parts and place each component on its own page. This reduces the amount of redundancy in the application workspace and helps to minimize visual confusion.\
Using a [Goto Page](/fuse/call-flow/go-to-page.md) (
) module allows users to access pages within a call-flow.
### **Using Page Tabs**
To **add** a new page tab, select the purple plus icon (
) in the top left corner of the Application Editor screen.
For page tab **options**, select the gear icon (
) on the desired page tab. The page tab will display a set of icons for each option, as shown in the following image.
These page tab options are as follows:
1.  **Rename:** Select this option to rename the page tab. A window will be displayed with a field to enter the page tab name. Enter the desired name, then select **Rename** 
to submit.
2. **Clone:** Select this option to create a copy of the selected page tab as “Page X (clone)”.
3.  **Delete:** Select this option to remove the selected page tab from the application.
{% hint style="warning" %}
***Note**: Fuse does not prompt users to confirm the deletion of a page in the application editor.*
{% endhint %}
#### Navigating page tabs
The Application Editor offers two ways to navigate page tabs:
* **Scrolling:** Left and right arrows are located to either side of your page tabs. Use these arrows to quickly scroll through multiple page tabs.
* **Dropdown list:** Select the down arrow to the right of your page tabs to open a dropdown list. You can select a specific page tab directly from this list.
{% hint style="info" %}
**Note:** Depending on your screen resolution and browser size, these arrows will be greyed out until a certain number of page tabs have been added.
{% endhint %}
#### Sorting page tabs
To **change the display order** of the page tabs, select the Sort Page icon (
). The Sort Pages window will be displayed, as shown in the following image.
Drag and drop the listed page tabs to rearrange them as desired. The other pages will automatically shift up or down as you move.
## Modules
Fuse's visual drag-and-drop interface is possible because of modules. These are components that carry out a specific function in a call-flow.
Fuse has three different types of modules: [call-flow](/fuse/call-flow.md) (
), [input](/fuse/input.md) (
), and [data](/fuse/data.md) (
).
### **Using Modules**
To expand the modules menu click on the 
button. The expanded menu has a search function and also a pin/unpin feature that allows users to anchor the menu to the toolbar or pin it to the workspace grid.
Click on a module category to expand the menu for that specific classification of modules.\
Hovering over a module in the module list displays a brief description of what the module does.
To **add** a module to the workspace grid, click on the module icon or the (
) button for that icon.\
Users can also click on a module icon and drag it onto the workspace grid.
To **move** a module around the workspace grid hover over the module until a white cross icon appears, then click and drag the module to the desired location.
For more information on modules, please see the [Modules](/fuse/application-editor/modules.md) page.
## Application Settings
Users can access all of the global application settings for the current application by clicking on the gear () icon. This takes users to the application settings manager.
See the [Application Settings](/fuse/application-editor/application-settings.md) page for more information on this menu.
## Audio Manager
Users can access all of the audio settings for the current application by clicking on the speaker (
) icon. This takes users to the audio manager.
See the [Audio Manager](/fuse/application-editor/audio-manager.md) page for more information on this menu.
## Save & Save As
Fuse offers users two different save features:
To quickly save an application under the current revision, simply click the 
button.
For more save options, click the arrow next to the button to open the save menu.\
This menu allows users to define the type of revision they are saving as either a major or a minor revision.\
The menu also allows users to give the application version a custom name.
---
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