no worries... so head to https://arena.hive.uno (login with keychain). Use the PC browser for now, the keychain internal browser is not yet able to work with this.

Then you click workshop to start and you will have to click on your posts that will appear... takes a bit and the scanning will show you what "cards" you will have depending on the post.

Should look like something like this...

Then once all are discovered, you go back and start a game... on the "Play" button... you then need to select which cards/posts you re going to play with...

And then click find match...