I'm a bit puzzled because both Tablet and Mobile are Portrait layouts. A tablet in the landscape will use the Primary layout. Do you use a monitor on the desktop in Portrait mode? Why would you change the Primary view if that is not the case? I will sometimes rotate my monitor to Portrait mode, but never for eLearning. To switch between layouts, you can click directly one of those layouts on the Responsive Project pane. https://american-writers.org/
I'm a bit puzzled because both Tablet and Mobile are Portrait layouts. A tablet in the landscape will use the Primary layout. Do you use a monitor on the desktop in Portrait mode? Why would you change the Primary view if that is not the case? I will sometimes rotate my monitor to Portrait mode, but never for eLearning. To switch between layouts, you can click directly one of those layouts on the Responsive Project pane. https://american-writers.org/