Steam Additional Showcases

Eventually it upgrades by itself, i had to just wait. Some steam bug i guess. I'll save the topic for someone like me.

if your on about your profile i didn't even know you can level your showcases

You can also buy space with the Steam Points, although there may be a minimum level for a few options.

6k points for a new showcase slot is too much for me, it's even harder when I activated most of my games by keys, sad that they don't allow points region pricing