How to get Event when switching tabs in Unreal Editor

Hey guys,

I’m currently writing a custom Node Editor for Unreal and I need an event when the User switches tabs in the Unreal Editor.
I’m searching hours and couldn’t find anything.

I have a SGraphEditor Widget in my Editor and I try to get a MouseButtonDown Event for it. Unfortunately this is wrapped in the SGraphImpl class, which isn’t accessible.

Thanks in advance for your answers :slight_smile: