Custom concept relations
Any custom relations of a concept, defined through the project settings, are managed in the Custom relations tab of the Edit Concept panel.
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For single instance relations:
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To specify the related concept, enter its URI.
While you type—at least three characters—existing concepts with matching URI are displayed in a pop-up menu and you can pick one.
If you start typing a full URI, the Create new URI line at the bottom of the pop-up menu gets enabled. If you choose it, the relation refers to a concept that, at the moment, doesn't exist in the thesaurus. - 
When a relation has been specified:
- To select the related concept in the tree, hover over the relation label and select Show resources 
. - To delete the relation, hover over it and select the X button 
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 - To select the related concept in the tree, hover over the relation label and select Show resources 
 
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For multi-instance relations:
- Manage individual relations as above.
 - To add a new instance, select the plus button above the relation name.