Add editor-only locator-widget?

How can I add a widget like:

87212-loc.png

I don’t know it’s name but I would like to have one of those myself to set a vector3 property on my own actor-component-blueprint. I vaguely remember this used to be possible but I can’t find it.

There is no way to draw this outside C++. But there is arrow component that look like that arrow, you could make something out of it