HOCON : How to limit the base include

Question

I am using a HOCON configuration file where I am having a base file like

Value{
  key1{
    somekey: testvalue
  }
  key2{
    somekey: testvalue
  }
}

There are 2 derived confs which are like below Conf1

include "base"
value{
  key3{}
}

Conf2

include "base"
value{
  key4{}
}

I need the result like Conf1 should contains "Key1" and "Key3" where as Conf2 should contain "Key1","Key2" and "Key4". Can I achieve this using hocon base config?