Have Game Releases Appear on Lists/ Shalves

So I was hoping to create an “Owned” shelf so that I could keep track of what games I, well, own. However, I’ve noticed that if you add two different releases of a game to the same list, only the “standard” version will actually be shown.

In the above linked example I’ve added the Mega Drive and Master System releases of Sonic 1, as well as the PC, 3DS and 360 versions of Sonic Generations to the list via their individual pages. However, as you can see only the US versions of both show, as Grouvee sees these as the main/ catch all versions.

For uses such as the above - which I think this is a great site for - being able to see each version would be really great.