X and Y postion link to X and Y roetion element 3D

Could be as trivial as

mPos=thisComp.layer("Group 1 Null").transform.position;

mTar=thisComp.layer("Target").transform.position;

lookAt(mPos,mTar)

You just need to create the reference Nulls for the Group in E3D and create the target Null.

Mylenium

There is any number of "targeting" expressions. A simple web search can turn up the various solutions using lookAt() or Math.atan() or even more complex solutions with custom vector math. Entirely depends on what you need.

Mylenium