There could very well be another way around this, but here is one option. I would go to Groups > Create From Groups… in the menu to find the references, then search in the newly created group.
PS: I am using Endnote X7 on both PC and Mac.
There could very well be another way around this, but here is one option. I would go to Groups > Create From Groups… in the menu to find the references, then search in the newly created group.
PS: I am using Endnote X7 on both PC and Mac.