There should be a Details Panel available when you select the GAS component. If not, go to Window->Details to show it. There you will see a category named ‘Attribute Test’ with the type of elements I described in my previous answer. If you still can’t see anything, maybe it’s the way you created the component. You’ll need to provide code (unless this is pure Blueprint). Also possible this component / BP is corrupt… when details panel is not visible.