Safe Frame for Screenshot Export

We are starting to use Enscape for still renderings, and cannot figure out a way to see exactly what portion of the image will be exporting. Are there any plans to add a “Safe Frame” or something similar to the view window, for the times that the aspect ratio of the view window does not match the aspect ratio of the output? Or is there a way to do this already?

go to capture tab, select custom, check “use viewport aspect ratio” then type how wide you want your image

BTW, i think that a “safe frame” tool would be useful, when trying to select a part of the modeler viewport. A +1 by me!

@icarumba @pibuz Got your upvote.