# Understand the Workspace user interface in EMR Studio
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The EMR Studio Workspace user interface is based on the [JupyterLab interface](https://jupyterlab.readthedocs.io/en/latest/user/interface.html) with icon-denoted tabs on the left sidebar. When you pause over an icon, you can see a tooltip that shows the name of the tab. Choose tabs from the left sidebar to access the following panels.
+ **File Browser** – Displays the files and directories in the Workspace, as well as the files and directories of linked Git repositories.
+ **Running Kernels and Terminals** – Lists all of the kernels and terminals running in the Workspace. For more information, see [Managing kernels and terminals](https://jupyterlab.readthedocs.io/en/latest/user/running.html) in the official JupyterLab documentation.
+ **Git** – Provides a graphical user interface for performing commands in the Git repositories attached to the Workspace. This panel is a JupyterLab extension called jupyterlab-git. For more information, see [jupyterlab-git](https://github.com/jupyterlab/jupyterlab-git).
+ ** EMR clusters** – Lets you attach a cluster to or detach a cluster from the Workspace to run notebook code. The EMR cluster configuration panel also provides advanced configuration options to help you create and attach a *new* cluster to the Workspace. For more information, see [Create and attach a new EMR cluster to an EMR Studio Workspace](emr-studio-create-use-clusters.md#emr-studio-create-cluster).
+ **Amazon EMR Git Repository** – Helps you link the Workspace with up to three Git repositories. For details and instructions, see [Link Git-based repositories to an EMR Studio Workspace](emr-studio-git-repo.md).
+ **Notebook Examples** – Provides a list of notebook examples that you can save to the Workspace. You can also access the examples by choosing **Notebook Examples** on the **Launcher** page of the Workspace. 
+ **Commands** – Offers a keyboard-driven way to search for and run JupyterLab commands. For more information, see the [Command palette](https://jupyterlab.readthedocs.io/en/latest/user/commands.html) page in the JupyterLab documentation.
+ **Notebook Tools** – Lets you select and set options such as cell slide type and metadata. The **Notebook Tools** option appears in the left sidebar after you open a notebook file.
+ **Open Tabs** – Lists the open documents and activities in the main work area so that you can jump to an open tab. For more information, see the [Tabs and single-document mode](https://jupyterlab.readthedocs.io/en/latest/user/interface.html#tabs-and-single-document-mode) page in the JupyterLab documentation.
+ **Collaboration** – Lets you enable or disable Workspace collaboration, and manage collaborators. To see the **Collaboration** panel, you must have the necessary permissions. For more information, see [Set ownership for Workspace collaboration](emr-studio-user-permissions.md#emr-studio-workspace-collaboration-permissions).