Here's a little plugin I threw together to enable just that. All it really does is save us a few clicks by keeping away from admin-mode. I find it handy nonetheless, for example when working with editors where we're testing out stuff and throwing content back and forth between eg. stage and dev environments. 

The export is performed with pretty basic settings; include the selected content and it's children, plus any linked media. The same goes for import, which creates new identifiers and skips validation.

Requires Episerver 10+ and WebAdmin or Administrator role.

You can find it in the Episerver nuget-feed, or if you feel like contributing, head on over to GitHub

 Export demo

Import demo