Information on the various layers of a project can be available in JMap Pro. This information could include the source of data, the date the last update was performed, the quality of the data, etc. This information, called layer metadata, is configured by the JMap administrator.
If a layer has metadata, you can preview it by placing the mouse pointer on the name of the layer in the layer manager.
To access the complete version of the metadata, you must click on the metadata button in the layer settings menu.