I am not exactly sure I understand what you are trying to do, but it appears that you want to have the title zoom out into the distance.
The built-in 3D titles do not have the Z position published, so it is not trivial with them.
You could open a copy in Motion and publish the Z position, but there is perhaps an easier way.
Rippletraining has a bunch of 3D title collections, which build on the original ones and provide a whole lot more options.
One of those is free: Ripple 3D Animations.
Using any of those, it is trivial to do the sort of Start Wars intro by disabling all the animations and simply making two keyframes for the Z position, at the start and end.