Thank you both for your responses. They help me to understand the motivation of arguing and suggesting. – But they also make me aware of a basic misunderstanding of Global Layers in general. Sorry if I sound embarrassing or offending – it is not my intention. My motivation is, to avoid to have ideas spread repeatedly, which lead in a different direction. I try to explain:   "Hi, can I use email here?"   "Welcome! We don't have email yet but, until then, you can use fax machine." The fe