TableRelation search in Dev Toolkit?

Does anyone know if searching for where a certain table is specified in the TableRelation property of a field is officially knackered in Toolkit? I can’t get it to work through either Source Finder or Where Used searches. In fact I opened up one instance in the object tree where I knew it was (in this instance, I was looking for Salesperson/Purchaser as the TableRelation, and I opened up Salesperson field in the Contact Table.) This showed the correct TableRelation - I then right-clicked and did a search on the exact text in Source Finder - which then failed to find anything. In other words, the search contradicted what the Object Tree was telling me. Is there any documentation, official or otherwise, to list ‘disabled features’ in Toolkit. Did this used to work in Impuls?

Right-click on the table and use “Relations from objects”.