Filter Obsolete requirements

[cory.crandallseibert@collins.com]

I recently synced and excel file and there were requirements / items that were deleted. Cameo highlights the "Obsolete" requirements / items in red. At the current time I don't want to remove them but would like to filter the requirement table that was used for the import / sync of the excel file to show only those items that were highlighted "Obsolete". Is there an attribute that is set during the sync that can be used to filter for "Obsolete" requirements?