[Widget] How to make zoomable and pannable Widget, like in BP Event Graph?

I have a huge Skilltree Widget, which I want to get in a much smaller Widget, where I can zoom in/out and pan in any directions with hold Mouse Button.

It should be like in BP Event Graph or just Google Maps^^

Would be nice if anyone knows a solution

I would like to know the same too.

I have checked every forum, video, documentation, … and there is no information on this at all, I’d love to know too…