That sure makes the workflow a lot easier, I'll give it a try.
I've looked this feature up on YouTube (https://www.youtube.com/watch?v=vh7Pi8fRazE) and found that it also 'blends' the images. This would take some processing power of the computer, so if there are a lot of images to stack this would take some unneeded time, because I'm just ungrouping the stack again.
An option to open the images as seperate layers (and this could be as simple as a checkbox in the stacking window called 'open as layers instead of group') still is the better option.