I want to install the Homematic integration, as it is documented here. However, when I try to add it, I only find the Homematic IP Cloud integration, see screenshot:
Homeassistant needs to be restarted in order for the changes in configuration.yaml to take effect.
You should not use 127.0.0.1 as the IP address of the CCU, even if the CCU (Homegear in my case) is running on the same machine. This is because the CCU does a callback. If you use the actual IP address of the machine, it does work fine.