Ah, thank you very mutch! You are saved a lot of time for me!
But I didn’t find this property, so I used these node for that:
So now I need to revert all my custom solution for that case. My solution was creating custom PlayMontage node on C++ that called PlayMontage in targeted LinkedAnimMontage and also I had created custom AnimNotifies… So now I can delete that bad code and just enable this property.