Hello @giovanny_padilla
Sorry for the late response!
Yes, you got it correctly. On top of that, you can have several different apps (containers), for example, you can have 1 public application for your customers and another one for Admin users.
At this moment there is no UI for cloning pages from other UIContainer, but there is a workaround: since each page is just a folder you copy across different containers
However, this is an undocumented feature and it might be changed in the future.
Internal ticket to add the UI for cleaning pages across containers is: BKNDLSS-25095
Regards, Vlad