Setting up objects for videos. Auto-translated

In the videos featuring the Tribes of the East, I noticed houses that are located in the city of Humans, meaning peasant houses. What do I need to click on to make them appear as well?
The ones in the screenshot at the bottom.

Added 18 minutes later

I don't understand... Where did they appear?

In the editor, videos are also created in the editor.

in the editor, select any object (grass), then click ...shared - there, select arenaB1 / arenaB2. These are city buildings that were often featured in the Tribes of the East videos. If I'm talking about something else, I apologize.

Added 6 minutes later
I'm making corrections - after clicking on shared, find combat arena, inside this folder are grass combat B1 / grass combat B2.

Yes, this is exactly what I needed, thank you!