3D Widget controllable via crosshair?

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I mean you look with the crosshair at a button inside a 3d widget object and then you click and it interacts with the widget. Its just without the mouse, like you have the cursor attached to the center.
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I guess you can do it that way, but it’s clear that other ways are necessary.

So, hello by the way :), do you think that what i asked is doable (currently or later ?)
If you have a solution let me know :slight_smile: