After more trial and error, I found out that it seems to make more sense to layout the first "row" of controls using one HStack. Please see the attachment.

OK, after quite a bit more searching, I came across several links. One of the links was Gosh Darn SwiftUI - Cheat Sheet, which the link can not be displayed here Fabula For SwiftUI Human Interface Guidelines Interactful Another link, hackingwithswift quick-start/swiftui which can not be displayed. I still have not found a guide that shows controls graphics and their usage. Jim