I have added the information to issues page. Hope he can support this (I notices that there are a number of issues of last year are still open, but maybe some of these are not applicable anymore).
To capture the information in step 4 I tried to login on the Tahoma web client via https://www.tahomalink.com/enduser-mobile-web/steer-html5-client/tahoma/, but apparently the login details are not equal to my Somfy login details. I have a Connexoon, so maybe that is the reason.
