Not being able to see the runway in a crosswind because somebody put a pillar in the way? Welcome to my world!
It's not uncommon to have to slide over and look through the centre windscreen during a crosswind approach. The centre panel is unheated so can make for an interesting approach if you picked up a bit of ice and it's -4 in Dunedin
As far as power goes it depends on whether you are in a Metro 3 or 23. The Metro 3 slows down a lot easier.
Standard practice is to close the power levers to just above flight idle, at 215kts take 1/4 flap then speeds high. This will slow you to 180kts for 1/2 flap then 175 kts gear down. Reset about 30-35% torque and you slow to towards 140kts which you maintain to 500ft. At 500ft it's full flap and 25% torque for a Metro 23 and 30% for a Metro 3.
Autopilot mode selector on ZKPOB is towards the bottom of the centre pedestal. ZKNSS's autopilot mode selector is in the centre on the main instrument panel and mode selectors for the EHSI are low down on the far side of each pilots instrument panel.