Thanks, it works and it took about 6h to sync. The wallet is good looking. Exploring the settings I saved the seed and created a spending password as I would do on the real network. I'm confused by the backup part, the instructions say that the seed isn't enough to recreate the account but you need other settings too but it doesn't say which ones or how to save them (I don't remember the exact phrase because it was deleted along the seed after I saved it).