@JoSf
Here’s what I see (in 5.3.2) when I select the custom event node in either the graphs hierarchy panel on the left or the node’s tile in the blueprint editing pane.
The Details panel shows a field for the event name, but no other fields like the access specifier I get when I select a function.
Have I misunderstood where I should be looking, or made a mistake in how I’ve set this up?