Rainboe's right....FMS just needs tidying up below 10000ft, and that's done by PNF on order of PF.
Mind you, looking out of the window below ten hasn't been much help these last few weeks in the UK! But visual skills are essential everywhere for weather avoidance, and terrain avoidance too, especially when heading for Greek Islands, Egyptian/Turkish destinations, and most long-haul beach fields....along with use of terrain map and/or radar. And keeping an eye on TCAS to see what others are up to. And listening to ATC commands to other traffic. And monitoring w/v too. Quite a lot to think about along with flying the aircraft, but not playing with the FMS!