Adaptive Mesh Refinement

An accidental google led to some suggestions of FEFLOW's ability to implement an adaptively refining mesh, yet I can't see the option in current versions!

Is it still there, or has it been removed since it's original implementation?

Adaptive Mesh Refinement (AMR) does not exist in recent FEFLOW versions. Indeed, long time ago there was the capability to use AMR. As far as I know, this capability reached rather an experimental stage only.