How to make buttons don't hover each other (widget)

Hi. I made two buttons that partially overlap each other. I should make that if I drag my cursor to an overlapped point, both should be activated. How should I do that?

In UMG? Sounds pretty much impossible, at least when using buttons, and not without some serious workaround hackery. At which point I’d suggest you made your own overlapping buttons out of borders or, better, borders wrapped in user widgets:

The vertical bit can be see-through, and a mouse over could send a message to the other elements.