Okay so I haven't looked at the store page for quite a while because I have been pretty busy with my study. But when I took a look at it today I was quite shocked to see that they have changed the lay out of the DLC's.
You see, ever since I started playing EU4 I have wanted to play with every expansion they offer, and I have been buying them one by one, seeing the "Downloadable content for this game" tab slowly filling up and getting closer to a fully filled page. However now they have changed the way the DLC's are displayed, no longer showing them all one by one but p[acking them together in "collection's", which is really anoying because it has become much more hard to see what DLC I still miss. What is even worse is that even though from some of these collections I own every DLC independetly, the collection doesn't show up as "in library". It is really anoying because I'm not going to pay €15,99 for the "Collection - Europa Universalis IV: Ultimate Unit Pack" DLC when I already own every one of these unit packs independently. Same goes for the "Early Upgrade Pack" and "Monuments to Power Pack" collections.
Please fix it so that when I buy (or in my case have already bought) all the downloadable content individualy it shows up as "In library" in the store page, thanks. (Except offcourse if this is in some way impossible through the way steam works)
I do understand your frustration of the collections not showing up as "in library" when you own every DLC. Unfortunately due to the way steam ownership is setup, this can't be fixed as for now. The feedback is appreciated though!