This can be done in the Appearance > Menus. Into your menu you can insert also the categories of rooms, or direct link to your rooms.
Maybe you have this setting hide. If you cant see it, please open the Screen Options at the top right corner of window and check here checkboxes which you want to show. Then you will be able to insert into your menu whole category of rooms, or just room.

Regards, Ivan.

Hi, in actual version of template it is not possible to show rooms in any page. But the version 2.0 coming soon, and there you will be able to use the shortcodes to show rooms in this way like you want. Please be patient. You can check themeforest site tomorrow, or later if the version 2.0 is available.
Thanks, Ivan.

Hope all works fine now with new version.
Regards, Ivan.