Focus changing with arrow keys?

[npwoods]

I have a very simple dialog with a number of StandardButton controls. While Slint gives me tab navigation for free, it doesn't seem to provide arrow key navigation for free.

I started by trying to attach a key-pressed callback to my StandardButton controls, but that doesn't seem to be an option. What is currently the "least worst" way to do this? In (seeming) absence of an easy way to do this, I'm curious what the recommended practice is (hopefully) for now.

[ogoffart]

This might be possible using a FocusScope as a parent. (see also discussion in #5550)

But that's also something that should ideally be implemented in Slint itself and is not yet implemented.