Scheduler Integration, Card, Mushroom

I have installed the Scheduler integration. Have the Lovelace Scheduler card showing up in the Add Card list. And have Mushroom. But I do not see that lovely interface that people use after installing all this stuff.

I have managed to create several schedules. But in a rather ugly way compared to the proper method I see being used. I also have a problem creating a schedule card that does not also display all schedule entities. But I can by some accident do it.

I suspect I have not enabled or linked something. Or a path?

I do not see a nice page with a list of entities to choose from. Just a card with all entities, that I have to add a schedule to and select the entity after entering an action for the time slot.

Suggestions to a good install and configuration video or article?