A new version (1.0.6) is available in Extras-Devel (or will be soon, it's in the queue) with a unique improvement.

You know that you can use "long press" as a right click to display a context menu.

Now, in lists (not in the article view), when you click on the right (area of 50pixels) of an item in a list (feed list or item list), the context menu will be displayed as if you have made a long press, but really faster than a long press (it's an instant action, as soon as you release the click)

Hope it will help you to be more efficient with GRead. I was waiting for it for weeks (just needed to find time...)