• store a map of url/screen ids in the configuration file
• have a central mapping object shared by all folder views
• if the model is used in a view that is a containment, filter out files

not belonging to the current screen

• if a screen is removed, the items are moved to the first available screen,

but it is remembered on which screen they were

• when a screen is plugged back, the items are moved back to the remembered

location