https://peakd.com/hive-198327/@peak.answers/how-to-create-a-community
You can find that link and many more in the PEAK FAQ PROJECT Community. He has a pinned post for future questions, and the TOC pinned also.
If you are not getting the plus then it may be a problem with the api you are on, you can try switchin api's on both peakd, and on hive keychain to see if it shows up.