Term types from sources that have been excluded on the Source List tab will not be visible on the Relationship Types To Exclude tab.
When configuring this filter, selecting a relationship type for removal will prompt you with a list of all other relationships with the same source so they can also be (de)selected.
MetamorphoSys Options
The behavior of this filter is affected by the MetamorphoSys Options
Auto Select Related Items - If this checkbook is selected, instead of being prompted with
a list of other relationship types belonging to the same source as described above, the (de)selection
of relationships will be automatic. This is for advanced users who want to this behavior without
always having to confirm.