Searching for multiple substructures within IJC

I have a table in ijc with structures, properties and other data.  I'd like to be able to search for multiple substructures at the same time.  If I put the substructures of interest in the structure box in query mode, I pull out only those structures that contain all of the substructural features.  Is there any way of searching for substructures in an OR type mode rather the AND mode.  Thanks.

Yes, this is fairly simple to do.

Firstly, you must use the query builder (this is not possible in form based query).

Then add the structure field as many times as you want to the query builder. The logic will still be AND, but if you right click on the AND node at the top and choose 'Change to OR' you will get OR logic.

Tim