Use UKF function in for each subsystem

I need to run the UKF function for few interations, but simulink seems not support it. The UKF measurement function cannot change the Code generation function packaging since it is grey. How could I implement this?

Simulink does not support block 'A' inside subsystem 'A' because the subsystem contains a For Each block ('A/For Each'). Open the following message for detail.

Caused by:

• The parameter 'Code generation function packaging' of subsystem 'A/Simulink Function - Measurement Function' is set to 'Function'. However, this subsystem is inside subsystem 'A', which contains a For Each block ('A/For Each'). Simulink does not support this scenario. Consider changing the parameter 'Code generation function packaging' of subsystem 'A/Simulink Function - Measurement Function' to 'Inline', 'Auto' or 'Reusable function'.