First want to say big thank you to @fordsmax471 and all contributed to this thread.
My feedback in brief.
Car - Ford S-Max 2.0 TDCi 2016 PowerShift
I live in Bulgaria, but the car was bought from Italy.
My original keys are part number DS7T-15K601-DD and I've bought this one
CN18093 HS7T-15K601-ED/DS7T-15K601-EF Smart Remote PROXIMITY Key 433.92MHz FSK Transponder for Ford
from aliexpress ( https://www.aliexpress.com/item/1005002 ... f19cNj8Cih )
Followed all the steps described here on the thread.
Successfully managed to add new key.
Unfortunately I have to change RTM settings since new key worked only in backup slot.
After change of RTM new key is able to lock/unlock and start the car, old keys work only in backup slot.
I did all changes in IPC and BCM modules with Forscan.
Reset all 3 modules.
But Remote start not working!
Tried with press lock button once and than double press 2x - no success.
Only double press 2x - no success.
Nothing happens!
I reread the whole tread and see that fordsmax471 mentioned something about enable remote start in IPC menu with buttons on the left of steering wheel
but i have no such menu in IPC panel on the dashboard.
Any ideas will be highly appreciated.
P.S. Someone mentioned the car battery is important, i am not sure how to check this, battery seems to be fine, since i have no troubles starting the car normal way even in cold weather now ( around 0 degrees )
P.S.2 Auto Start/Stop is disabled via forscan if this is of some importance.