If you read further, adding these "sub apps" is like adding another account. Have you added something like a blogger before on Wechat? I think it works like tha

If you read further, adding these "sub apps" is like adding another account. Have you added something like a blogger before on Wechat? I think it works like that. You get the ID and you added like a friend. Then the "chat menu" is just a little different with other features inside. If you find a way I'd really appreciate a little update from you. I'm currently not in China, was also totally unaware of these capabilities, but I think they might be a major thing once uncovered, that Chinese people basically don't tell you about because they think it's common knowledge.