Welcome aboard. Etiquette? Manners? Courtesy? Well, those go against every principle I stand for, but I'll try to be nice.
In my not-so-humble opinion, there's no such thing as a dumb question. There's just the dumb mistake you make because you didn't ask a question. Now that I've retired, bought a home and know where I'll have layout space I'm trying to settle in on a design and will be asking more questions myself.