Assalam-O-Alaikum Borhter
Hope you are well. Congratulations on your buying 
I have also recently bought Vezel 2016 model 16K driven upgraded from Vitz.
Answers to the question are as follows according to my research
Use ATF-DW1 which is used for DCT. Don't try to find the Ultra version as it's only available in dealerships which cost around 16k and it's in 4-liter packing. ATF-DW1 you can buy this from the market easily in 1-liter packing. The preference is to change it after 10k to 12k km because of weather conditions in Pakistan Otherwise according to the manual, it should be changed after 60k. Pour 2 liter. You can use 1.3 as well according to manual but as the wather here is hot so expert advice is 2 liter its perfectly fine.
Actuators work behind the scenes in vehicles to convert energy into physical action or force. They perform a variety of performance and convenience functions, from controlling the throttle to directing airflow in the climate control system, and operating power seats and liftgates.
Actuator fluid should also be changed after 10k km as it gets black and can damage the DCT. You can use DOT4 oil for actuator.
Just use 0w-20
Just dont wah it with water
Nothing special. Just drive normally and enjoy.
