Enc_tgt(1,1,pulses) - stops, and status of first to hit or after both hit

I cannot tell from the docs at Tutorials and Documentation: enc_tgt()
i1. f fwd(),bwd(),motor_fwd(),motor_bwd() all stop when enc_tgt() is used?
2. do these routines also stop if I only enable one encoder target, even though both wheels are turning?
3. for enc_tgt(1,1,pulses): do the fwd/bwd routines stop after the first encoder reaches the target, or only after both encoders reach the target?
4. read_enc_status() has same behavior as motion stopping?
5. Or am I missing the point, and each motor stops independent of the other when it reaches the tgt?