Publishing .md files in Elements

I know the online editor “sort of” deals with this but as yet no sync is available.

When you edit a .md in the Elements app you cannot just publish just that file, you have to publish the whole cms folder. Is there a reason for this? If not why cant there be an option to just publish the modified .md file?

I do realise that going to the Publish button on the top right sort of does this but if you right click on the file there is no ‘Publish Page’ option.