How to save rendered image in seperate window.

First i want to say that bricsys did a great job with the new rendering presets in V13.2. But one thing i really miss. I like the new possibility to render 3d models in window and the results are good. But how can i save those images from the there? There is no save or save as button, so that you should do a screenshot or render to a file a second time:( any ideas or plans if it will be integrted or do i just dont find?