Wishlist for eroge

I've seen a number of eroge on fakku I'm interested in buying, but not right away.

What I was really surprised to see is that there is no wishlist feature for eroge on fakku.

I want to remember to buy a certain game once I have the spare cash, and a wishlist would be really a really nice feature. I hope Fakku considers it!

While no wishlist function on it's own exists, you can create a collection and add it there for your own personal organization on your account.

This is what I've been doing for chapters, but I've never been able to add games to my collections. Should it be possible?