# Managing layers in a project The layers of a project are displayed in the **Layers** section, which may be accessed from the JMap Admin project configuration interface. In the **List** tab, the table shows basic information about each layer of the project. When you click on the name of a layer, a details section displays. The **Hierarchy** tab displays the groups and subgroups with the layers that compose them. The tasks you can perform from this tab are detailed in the [Organizing Layers](/en2/administrator/jmap-server-administrator-manual/projects/configuring-projects/organizing-layers.md) section. In the **List** tab of the **Layers** section of a project, you can perform the tasks described in the table. For some tasks, you must select more than one layer.


Layers
Add - Create	Initiates the creation of a new layer. Refer to Creating Layers.
Add - Clone/Reference	Allows you to duplicate or reference a layer from another project located on the same server or on a different JMap Server. Refer to Sharing Layers.
Add - Import…	Allows you to import layers one by one from a project exported from another JMap server. Refer to Importing layers.
Permissions	Allows you to configure permissions for the selected layers. Refer to Layer Permissions.
Update data sources	Updates the spatial data sources associated with the selected layers. Refer to Spatial Data Sources.
Update caches	Launches the preparation of the vector data cache for the selected layers. Refer to Creating Layers.
Update - Bulk edit…	Allows you to edit certain layer parameters in batches. The Bulk editing a layer set section provides details about this topic.
Delete	Deletes the selected layers.

This button ![](/files/ADpubGPXJJvJoDBgYkNf) allows you to access the **Permissions** section, where you can configure the permissions of the selected layers. See [Layer Permissions](/en2/administrator/jmap-server-administrator-manual/layers/configuring-layers/layer-permissions.md) for more details. ## Bulk editing a layer set You can edit different settings for a set of layers. You must select the layers to modify in the **List** tab of the **Layers** section of the project. Afterwards, press the **Update** button, and click on the **Bulk edit…** option. The **Bulk edit** interface will open.


Update - Bulk edit…
Change ‘Antialiasing’	Check if you want to change this setting. Check New Value to enable the antialiasing feature. Uncheck New Value to disable the antialiasing feature. The Style section provides details on this parameter.
Change Minimum scale	Check to change the minimum scale for displaying layers. Check Infinity or 1: and in this case, indicate the scale. The General Settings section provides details on this topic.
Change Maximum scale	Check to change the maximum scale for displaying layers. Check Zero or 1: and in this case, indicate the scale. The General Settings section provides details on this topic.
Change Request mode	Check to change the data request mode. Check the option of your choice. The Creating Layers section provides details on this topic.
Change Description	You can write a new description for the layers.

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