Hiding related tables in attributes editor window

Is it possible to hide related tables in the attributes editor window?
When opening the attributes editor you get to see the destination tables of each relationship class, which is fine.
However we have a geodatabase model with a table which is the destination table of several origin Feature Classes.
When editing a row in this table I don't want to be able to add new features in any of it's origin FeatureClasses.
How can I make them invisible in the attributes editor ?


Erik Eklund