Homematic devices not visible under overview or devices

Under Entities I see my homematic devices and can switch the on and off.
But I do not see them under devices nor in the overview screen.
(Other devices, such as sonos and Philips I see under Overview)

The view where you don’t see the devices only shows devices that have been configured with integrations. HomeMatic is set up manually, so these devices won’t show up there.