Two browse and edit screen on the same entity

Hello, on an entity I have created a generic ui, I would like to create another browse and edit screen with a custom configuration, for it in previous versions on the same entity created another generic ui and changed the id not to replace the .browse and the .edit screen, in version 6.4 I do not see how to replace the id of the screen in its creation, how could I do it ?.
Greetings and thanks.

You can modify the Id of an existing screen on the Properties tab of the screen design page. Also, you can create a copy of an existing screen through the context menu of the selected screen (click right mouse button on the screen in the tree). The copy will automatically be assigned with the new identifier: *.copy.