I'm trying to get directions from two points on the map. I can't figure out how to do this in the mobile version of the site, so I switched to "classic" (desktop) mode. It says to right-click on the map to select a location. How do I right click? Long tap does not work. The stylus button does not work.
There are several gestures which aren't really supported on mobile devices including right clicking, hovering and most keyboard shortcuts. It is up to website developers to recognize this when designing their user interfaces and either build in alternative gestures or simply rely on universal input methods like clicking/tapping.
Your best bet would be to contact the owner of the website you're having trouble with.