If the variables MS_RASTER_NO_DETACH_CONFIRM=0 and RASTER SILENT ON are set, an alert box asks if you are sure that you want to detach the selected raster reference(s). You can turn Off the alert box with the key-in MS_RASTER_NO_DETACH_CONFIRM=1. In order to activate the MS_RASTER_NO_DETACH_CONFIRM configuration variable, the product needs to be exited and reopened.

If you made changes to the raster reference's native information and Autosave is set to Off, an Alert box asks if you want to save the changes.