Modifying user attributes
You can modify the attributes of an item, SWD, overlay or dataset in the Properties Control Bar. You can delete the value to leave it blank or type in a new value.
For items, the attribute can be removed completely using the Remove button on the Attributes tab on the item’s Properties of dialog.
Item attributes can also be modified in the Properties Control Bar. If you intend to modify properties of several different items one after the other, it is more convenient to do it here.