KRC4 robot type change

I have a welding robot KRC4 KR16L6-2 with 4 external axis
KSS V8.3.29

I will change the robot to Hollow Wrist type :KR16LHW C4 FLR ZH01

What are the steps that I need to update in the controller? ( machine data,mada, kinematic etc??)

downloaded the project, changed the robot type

robot is working, external axis are working,

But the external axis are not synchronous!!!

robot and extrnal axis are mastered with EMD
tool calibration OK
base calibration are all OK

this is a welding robot which I need the 2 axis positioner (similar to DKP-400) must be moving syncronous with torch.

normally when I move the external axis the torch is following the external axis and keeping the welding point fixed.
T1B1 is choosen
world coordinate sytem
When I move E1;E2 axis torch is not following the positioner. ( all the other robots I have follow the positioner)

$async_mode 2
$async_axis 0
$ex-ax-async 0

after we changed the robot type to HW, everything is OK ( safety, remote connections, welding machine control etc ) except syncronous movement of positioners.

tool, root point, base is calibrated.
everthing seems green at startup wizard

what do you mena by "integration"; I could not find any integration part in the manual.

According to manual
Synchronous motions; Mathematically coupled: I just need to calibrate kinematic system. And I calibrated.
I set the machine transformation data for kinematic machines at WoV

Do I need to configure the cell as my Robot follows the external kinematic?