To create a space you need to have clear:
What type of space do you want to create? How is your inventory organized?
You can select the type of space you want to create (room, bed or apartment) from the lateral menu inside the tab Spaces.
Unlock the settings on the corner and click in +Create your first space or in the button +Create a space.
The mandatory fields are:
There are other fields you can configure that will help you to maximize your RevPAR.