You’ll have to modify the position of the 3D widget actor by the forward vector of the first person camera. See the screenshot below (this was done in the character blueprint). You can also use the first person camera’s up and right vectors to move the 3D widget around.
You might also have to rotate the 3D widget (again, use the first person camera’s settings) if you want it to always face the camera. This is not shown in the screenshot.
(I see I was a bit retarded with the “-100” and “-” nodes when creating this blueprint for you.)
