Hi Rafael

The clients can identify themselves through the user credentials, by calling
setUserName and setPassword.

This information (the user name in particular) is then made available to the getItems method in the Metadata Adapter, which can transform generic "item groups" requests issued by the clients into specific item requests on a user basis.
This is not supported by the default Metadata Adapter and requires that you implement you own Metadata Adapter code.

Note, however, that if different clients also need to see pages of different shape (i.e. with a different number of tables shown), then some client side elaboration is needed and this is not provided by Lightstreamer Web Client Library.

Dario