Restore default view with all entities

I am in the process of setting up HA in my house. I clicked the Configure UI by mistake. Havent changed nothing, but now my default view doesnt show all entities. How do I get the default view who shows all entities. I know I could create/edit a view and manually add all entities, but I would have to do this after each new device I add to HA. I have more than 100 devices (migrating from SmartThings).

Or there is a list of unused entities when you click the three dots Lovelace editor button.