# Main Window

<div id="bkmrk-upon-downloading-and"><div id="bkmrk-simlab-composer-inte">SimLab Composer interface is organized into workbenches. Upon selecting a workbench the allocated tools in that workbench will appear, and the interface will be changed to display the defaults of that selected workbench.</div><div>  
</div><div id="bkmrk-there-are-several-el">There are several elements that provide structure to how the commands are presented in the user interface. In addition to the 3D Area, the Main Window includes the following components:</div></div>- <span style="color: #3366ff;">[Main Toolbar](https://simlab-soft.com/help/books/simlab-composer-11-help-final/page/main-toolbar)</span>
- <span style="color: #3366ff;">[Scene Browser](https://simlab-soft.com/help/books/simlab-composer-help/page/scene-browser)</span>
- <span style="color: #3366ff;">[Properties Panel](https://simlab-soft.com/help/books/simlab-composer-help/page/properties-panel)</span>
- <span style="color: #3366ff;">[Library ](https://simlab-soft.com/help/books/simlab-composer-help/page/library)</span>
    
    
    - [<span style="color: #3366ff;">Assets Library</span>](https://simlab-soft.com/help/books/simlab-composer-help/page/assets-library)
    - [<span style="color: #3366ff;">Material Library</span>](https://simlab-soft.com/help/books/simlab-composer-help/page/material-library)
    - [<span style="color: #3366ff;">Animation Timeline</span>](https://simlab-soft.com/help/books/simlab-composer-help/page/animation-timeline-CYu)
    - [<span style="color: #3366ff;">Sequences Library</span>](https://simlab-soft.com/help/books/simlab-composer-help/page/sequence-library)
    - [<span style="color: #3366ff;">Scene States Library</span>](https://simlab-soft.com/help/books/simlab-composer-help/page/scene-states-library)
- <span style="color: #3366ff;">[Common Tool Bar](https://simlab-soft.com/help/books/simlab-composer-help/page/common-toolbar)</span>
- <span style="color: #3366ff;">[Quick Access Tool Bar](https://simlab-soft.com/help/books/simlab-composer-help/page/quick-access-toolbar)</span>
- <span style="color: #3366ff;">[Active Camera](https://simlab-soft.com/help/books/simlab-composer-help/page/active-camera)</span>

These components are shown in the following image

[![image.png](https://simlab-soft.com/help/uploads/images/gallery/2022-09/scaled-1680-/uRcimage.png)](https://simlab-soft.com/help/uploads/images/gallery/2022-09/uRcimage.png)