I found something like this:
#define TT(Value) FString::Printf(TEXT(“%s: %i”),TEXT(value), Value)
int z = 5;
UE_LOG(LogTemp, Warning, TEXT(“%s”), *TT(z));
Ofcourse this works only for int. For now I’am working on class that could represend logs like std::cout to the console, and you could print variable with name.