It´s not easy to customize the standard Where Used function. But I would recommend you use a TreeGridView as custom WhereUsed option. So you can define very detailed what you want to see in WhereUsed. In addition you avoid that people access ItemTypes they don´t need in daily life or are not allowed to see cause of company restrictions.
has anyone ever found a way to customize the standard "Where Used" feature? The keyed_name solutions some kind of works, but it still adds Aras ootb revision scheme (which doesn´t fit the revision schema I actually use). And adding the property "name" to the "keyed_name" is also not something to recommend.
I discovered that WhereUsed behavior is mainly influenced by the flimsy "getItemWhereUsed" function which is unfortunately a core feature.